Electric field is a physical field occupied by a charged particle on another particle in its surrounding. It is denoted by E. It is an invisible field.
a) Yes, an object with charge q experiences force from an electric field of intensity E. This force still acts even when the item is stationary because, as we can see, it is independent of the speed of the object.
b) No, the magnetic force produced by an object with charge q and speed v is equal to the magnetic force produced by an object with charge q and speed v in a magnetic field of intensity of B.
c) The electric force is still very strong. Point (a) shows that the electric force is still present and unaffected by the charge's speed.
d) The magnetic force F is no longer zero because the object is now moving at a specific speed v.
e) The answer is that the electric field does exert a force on the charges moving along the wire because it does so constantly to a charge.
f) Because a magnetic field always exerts a force on a moving charge, the charges flowing through the wire are being affected by the magnetic field. This is because the current in the wire is made up of charges travelling at a constant v.
g) Since an electric field exerts force and electrons have an electric charge, this argument makes sense. As a result, an electric charge and, by extension, an electron beam are always under the influence of an electric field.
h) The magnetic force is constant since the speed of the electrons in the beam is constant (v). V is not equal to zero, hence the magnetic field is not zero either.
As a result, an object with charge q experiences a force from an electric field of intensity E. This force still acts even when the item is stationary because, as we can see, it is independent of the speed of the object.
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A game of pocket billiards begins when the white ball, called the cue ball, is rolled toward a
set of 15 numbered balls arranged in a triangle. let the set of 16 balls in the game represent a
system, and let p equal the momentum of the cue ball. what is the momentum of the system
just after the cue ball strikes the numbered balls? assume that friction and other
nonconservative forces are negligible.
momentum sphere is a compact, psychological game used in stick sports like pool, snooker, and carom billiards. the quantity, kind, size, hue, and design of the balls.
Whereas if cue ball flies off the table, what happens?Every time a stroke causes the ball actually or just about any object ball to leap off the table in a game of pocket billiard, the stroke is indeed a foul. While all balls have stopped, all leapt object balls can be seen (apart from 8 and 9-Ball).
In a set, number of times cue balls are there?One white ball actually and fifteen colored, numbered balls make up a set of billiard balls. The balls with the numbers 1 through 8 and 9 through 15 are all solid colors.are white with such a colored band in the middle. The balls have a diameter of 52.5mm and are colored und numbered as follows: 1 and 9 in yellow.
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a scientist wants to measure the relationship between humidity in the summer and the number of home runs i baseball. Which of the folllowing teastable question about this topic?
Are home run totals in baseball significantly higher in summer months with higher humidity compared to summer months with lower humidity.
What is summer?Summer is a season of warm weather and long days that typically falls between spring and autumn. It is a time of year when people take vacations, enjoy outdoor activities, and soak up the sunshine. During this time of year, the days are longer and the temperatures are higher. During the summer, people often spend more time outdoors, swimming, picnicking, camping,
And participating in other recreational activities. Summer is a great time for barbecues, festivals, and other outdoor activities. The days are often sunny and bright, and the nights are balmy and mild.
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a gymnast is performing a floor routine. in a tumbling run she spins through the air, increasing her angular velocity from 3.00 to 5.00 rev/s while rotating through one-half of a revolution. how much time does this maneuver take?
The time this maneuver takes 1/10 seconds for the gymnast to complete this maneuver.
What is maneuver?
Maneuver is a military term used to describe a movement or series of movements that are employed to gain an advantage or tactical advantage over an opponent. It is often used to describe a series of tactical moves that are used in a battle or war. Maneuvering can involve a number of different strategies, including outflanking, encirclement, diversionary tactics, and other forms of strategic movement. Maneuvering can also include tactical decisions such as selecting a site or location for a battle to take place or selecting a group of troops to attack or defend a particular area.
The time this maneuver takes can be determined using the equation:
Time = (Angular Displacement) / (Angular Velocity)
In this case, the angular displacement is one-half of a revolution, or π radians. The angular velocity is 5.00 rev/s, which is equivalent to 5.00 x 2π = 10π rad/s.
Time = (π) / (10π)
Time = 1/10 seconds
Therefore, it takes 1/10 seconds for the gymnast to complete this maneuver.
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I'LL GIVE A BRAINLIST FOR SHOWING WORK
What is the difference in momentum between a 50 kg runner moving at 3 m/s and a 3000 kg truck moving at a speed of 1 m/s?
The momentum of the runner:
momentum = mass x velocity = 50 kg x 3 m/s = 150 kg*m/s
The momentum of the truck:
momentum = mass x velocity = 3000 kg x 1 m/s = 3000 kg*m/s
The difference in momentum between the runner and the truck:
difference in momentum = momentum of truck - momentum of runner = 3000 kgm/s - 150 kgm/s = 2850 kg*m/s
So, the difference in momentum between the 50 kg runner moving at 3 m/s and the 3000 kg truck moving at a speed of 1 m/s is 2850 kg*m/s
a certain 48 v electric forklift can lift up to 7000 kg at a maximum rate of 75 meters per minute. what is its power? round your answer to the nearest hundreds.
In this case the power is 703.8 kW and rounding to the nearest hundreds gives 700 kW.
What is power?
Power is the ability to influence or control people, events, and outcomes. It can be seen when one person or group is able to make decisions, set standards, and enforce boundaries. Generally, power is associated with authority, control, and influence; however, it can also refer to the capacity to do work or generate energy.
The power of the forklift can be calculated using the formula: Power = (Load x Velocity) / Time.
In this case, the power is (7000 kg x 75 m/min) / 1 min = 525,000 kg•m/min. Converting to watts, this is 525,000 kg•m/min / 746 = 703.8 kW.
Rounding to the nearest hundreds gives 700 kW.
In this case the power is 703.8 kW and rounding to the nearest hundreds gives 700 kW.
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two 3.8 g bullets are fired with speeds of 42.4 m/s and 62.1 m/s, respectively. a) what is the kinetic energy of the first bullet? answer in units of j.
The second one, which has more mass, will have more KE. Explanation: We are aware that KE = E=12mv2 where m Represents mass & v = movement velocity.
What does velocity vs. speed mean?As contrasted to speed, velocity describes the speed and direction of an object's motion because it travels along a path. So speed seems to be a scalar quantity, however velocity is a vector.
Why does velocity formula exist?According to the equation v = s/t, velocity (v) is a scalar quantity that quantifies displacement (or a shift in position, s), over change in time (t).
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A red cart mass = 2kg and a blue cart mass = 2 kg are ELASTICALLY crashed into each other at the indicated velocities and bounce. After the collision which cart will have the SMALLEST speed.
After the collision the cart with the SMALLEST speed is the cart with the GREATEST initial speed.
What is the principle of conservation of linear momentum?
The principle of conservation of linear momentum states that in an Isolated system, the total momentum of the system is conserved.
Mathematically, the formula for conservation of linear momentum is given as;
m₁u₁ + m₂u₂ = m₁v₁ + m₂v₂
where;
m₁ is the mass of the red cart
m₂ is the mass of the blue cartu₁ is the initial velocity of the red cartu₂ is the initial velocity of the blue cartv₁ is the final velocity of the red cartv₂ is the final velocity of the blue cartThe final speed of each cart is calculated as;
v₁ = [ m₁u₁ + m₂u₂ - m₂v₂ ] / m₁
v₂ = [ m₁u₁ + m₂u₂ - m₁v₁ ] / m₂
since m₁ = m₂, our new equation becomes;
v₁ = u₁ + u₂ - v₂
v₂ = u₁ + u₂ - v₁
Thus, the cart with the least initial speed, will have the greatest final speed and vice versa.
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Question 3(Multiple Choice Worth 5 points) (01.01 MC) Read the story description and historical context for the short story "Rules of the Game" and answer the question. Story Description: "Rules of the Game" tells the story of a girl who lives in San Francisco's Chinatown. She learns the strategies of chess but struggles to see eye-to-eye with her mother—possibly her wisest opponent and best teacher. In chess and in life, there are rules and choices. What's your next move? Historical Context: As a result of wars, famine, and political oppression, Chinese immigration to the United States dates back to the mid-1800s. Chinese immigrants came to the United States looking for better economic opportunities so they could provide for their families and send money to their relatives back home. San Francisco became a hub of Chinese culture; however, immigrants still faced many challenges like reduced wages, long work hours, and discrimination. Select the detail that supports the idea that Chinese immigrants were
Chinese immigrants sent money to their relatives back home.
Who are Chinese Migrants?Chinese immigrants were having a hard time in "china", not the USA, the Chinese father or mother sent money, from America, to china, because china was having a hard time, this also making the Chinese come to america.
Chinese immigration to the US has a long and occasionally contentious history. Due to organized labor lobbying and anti-Chinese sentiment, Congress passed the Chinese Exclusion Act in 1882, which virtually ended the immigration of Chinese workers.
On the other hand, the 1965 reduction of obstacles for non-European immigrants to the United States, as well as improving U.S.-China ties and China's relaxation of emigration rules in 1978, were game changers for growing immigration.
Therefore, Chinese immigrants sent money to their relatives back home.
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calculate the impulse expeirenced when a 70kg person lands on firm ground after jumping from a height of 3.0 m
We know that the work-energy theorem states that the change in energy (in this case, kinetic energy) is equal to the work done on a system.
what is energy ?
Energy is the capacity to do work. It exists in many forms, such as kinetic, potential, thermal, electrical, chemical, nuclear, and mechanical energy. Kinetic energy is energy that is in motion, such as a moving car or the wind. Potential energy is energy that is stored, such as the energy stored in a stretched rubber band or a raised weight.
Thermal energy is the energy of moving molecules, such as the energy in hot water or in the air. Electrical energy is energy associated with the movement of electrons. Chemical energy is the energy stored in the bonds of atoms and molecules. Nuclear energy is energy stored in the nucleus of an atom. Mechanical energy is energy associated with the motion and position of an object.
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studies show that in collisions where vehicle occupants who were totally ejected from the vehicle they were less likely to be killed. true false
False. According to studies, those who are completely ejected from a car during an accident are more likely to die than people who stay within the car.
What does a collision mean?When two or more things come into touch with one another and are impacted by one another, a collision occurs. This can happen in a multitude of contexts, such as on the roads when cars meet, in space when objects collide, or even during sports like soccer or hockey. The physical act of two particles coming into contact and reacting with one another, for instance in physics or chemistry, is sometimes referred to as a collision. Car crashes may cause damage to the vehicles as well as injuries or fatalities to the people. To reduce the incidence of accidents on the road, it is essential to prevent collisions through safe driving habits and traffic laws.
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i need help plssssssss
The object with the greatest inertia is 8 kg bowling ball.
option A is the correct answer.
What is Newton's first law of motion?Newton's first law of motion states that a body at rest or uniform motion in a straight line will continue in that form unless it is acted upon by an external force.
Newton's first law of motion is also called the law of inertia because it depends on the mass of the object.
The inertia of a body or an object is the measure of the reluctance of the body or object to start moving when it is at rest or to to stop moving when it is in motion.
The inertia of an object depends on the mass of the object, thus the greater the mass of an object the greater the inertia of the object and vice versa.
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As the frequency of a wave increases on the electromagnetic spectrum, what happens to the wave's energy
As the frequency of a wave increases on the electromagnetic spectrum, the wave's energy increases.
What is electromagnetic spectrum?The electromagnetic spectrum is a term used to describe the entire range of frequencies of electromagnetic radiation, from the longest wavelength radio waves to the shortest wavelength gamma rays. It is composed of various types of electromagnetic radiation, including radio waves, microwaves, infrared, visible light, ultraviolet, x-rays and gamma rays. Electromagnetic radiation can travel through space and can be absorbed, reflected, or refracted by various objects. Electromagnetic radiation is used in various fields such as communications, astronomy, medicine, and industry. For example, radio waves are used for communication, microwaves are used for cooking food, infrared radiation is used for medical imaging, visible light is used for sight, ultraviolet radiation is used for disinfection, x-rays are used for medical imaging and gamma rays are used for cancer treatment. Electromagnetic radiation has both electric and magnetic fields that are perpendicular to each other and to the direction of propagation.
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For the three vectors shown in (figure 1), A + B + C = 1ȷ^. What is vector B ?
(i) Write B in component form
(ii) Write B as a magnitude and a direction
a. -4i^ + 3 j^; 5.0, 37°
b. 4i^ - 3j^; 3.5, 53°
c. -4i^ - 3j^; 4.5, 65°
d. 4i^ + 3j^; 5.0, 53°
a. -4i^ + 3 j^; 5.0, 37° is vector B, its magnitude and direction.
What does the word "vector" mean?A vector is a quantity or occurrence with the discrete characteristics of magnitude and direction. Additionally, the phrase signifies how such a quantity is represented mathematically or geometrically. Examples of vectors in nature include weight, force, electromagnetic fields, momentum, and velocity.
Based on the figure = > A = 4i^
c= -2 j^
A + B + C = 1ȷ^
=> B= 1ȷ^ - 4i^ -(-2 j^)
=> - 4i^ + 3 j^
|B| = sqrt(4^2+3^2) => 5
Direction = tan Ф = 4/3 => 37°
How do you calculate XYZ's magnitude?|v| =(x2 + y2) is the formula to calculate the magnitude of a vector (in two dimensions) v = (x, y). The Pythagorean theorem serves as the basis for this formula.|V| = (x2 + y2 + z2) is the formula to calculate the magnitude of a vector (in three-dimensional space) V = (x, y, z).Learn more about vector here:
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a meteorite plunges to earth, embedding it- self 100 cm into the ground. if it does 400 mj of work in the process, what average force does the meteorite exert on the ground?
Work is described as the force applied over a distance, so
W = Fxd
F = W/d = 400 mJ / 0.1 m = 4000 N
So the average force exerted by the it on the ground is 4000 N.
What are the components of work?If work is done then there are three components involved. These are the amount of force, the distance of the displacement, and the reason behind the displacement. After multiplying force and distance for work, we get the unit of joules.
What is the connection between force and work?Work is the usage of force to move an object. It is directly related to the force involved and the distance the thing moves. Work can be calculated with: Work = Force x Distance.
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your first response to reduced visibility should be: select one: a. looking for road edge markings to guide you. b. reducing your speed. c. turning on your windshield wipers. d. turning on your headlights.
Your first response to reduced visibility should be reducing your speed.
What does getting visible entail?The term "visibility" refers to how far or well you are seeing in a certain meteorological scenario. Poor visibility prevailed. 2. a noncount noun When something is said to be visible, such as a situation or an issue, it refers to how much it is observed or observed by other people.
What, for instance, does visibility mean?Visibility can indicate both "how well you can see" and "how well others will see something." Your running leggings' reflective stripes make you visible in the dark as they make you more visible to others.
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Which of the following is an example of a velocity?
2 mile/minute
80 miles/hour
9.8 meters/second/second
45 kilometers/hour East
under what circumstances would a vector have components that are equal in magnitude? the vector lies at a 60 degree angle with two axes along which the component lie. the vector lies at a 45 degree angle with two axes along which the component lie. the vector lies at a 30 degree angle with two axes along which the component lie.
When a vector's components are identical in size, it means that the vector is at a 45° angle to the axis along which the components are located.
What needs to be true in order for a vector's components to have equal magnitudes?Only when two vectors share the same direction and magnitude are they regarded as being equal. Given that they share the same size and direction, the vector v and w are equivalent. Because they have opposite directions, vector v and w are still not identical.
Which one of the following comments about equal vectors is accurate?If the magnitude and direction of two vectors are the same, they are said to be equal. If they share the same original comment and are collinear, they will be initial if the same line is parallel to both vectors.
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determine the ratio of rotational kinetic energy to linear kinetic energy for a solid sphere of mass m and radius r that is rolling along a horizontal surface without slipping at a linear velocity v. group of answer choices 2/5 1/4 1/2 1/1
a solid sphere with mass m and radius, calculate the rotating angular momentum to linear angular momentum ratio. So, the aforementioned strategy is appropriate. = 2.4 J
What else could you use to describe determine?Determine has a number of popular synonyms, including resolve, decide, rule, and settle. All of these phrases refer to "coming to or causing to come to conclusions," but the word "determine" refers to settling on something's identity, style, scope, or direction. identified the issue's root source.
Calculation
Kinetic energy
According to the question,
Total Kinetic energy, KE' = 8.4 J
Mass, m = 3 kg
Center of mass's velocity, v = 2 m/s
Now,
KE(trans) = mv²
By substituting the values,
= × 3 × (2)²
= × 3 × 4
= 6 kgm³/s² or,
= 6 J
We know the relation,
→ KE(rot) = KE(total) - KE(trans)
By putting the values,
= 8.4 - 6
= 2.4 J
Thus the approach above is correct.
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the spacecraft is using xenon as the propellant for the maneuver in the previous question. how would you size the tank?
the spacecraft is using xenon with a total spacecraft mass of 5 kg assumed. This simple formulation captured the interaction between propellant pressure and propellant tank volume.
A propellant (or propellent) is a mass that is expelled or expanded in order to produce a thrust or other motive force in accordance with Newton's third law of motion and "propel" a vehicle, projectile, or fluid payload. A reaction engine is the engine that expels the propellant in a vehicle. Although a propellant is technically the reaction mass used to generate thrust, the term "propellant" is commonly used to describe a substance that contains both the reaction mass and the fuel that stores the energy used to accelerate the reaction mass. For example, in chemical rocket design, the term "propellant" is frequently used to describe a combined fuel/propellant, although propellants should not be confused with fuel.
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a ball starts from rest and rolls down a hill with uniform acceleration, traveling 200 m during the second 5.0 s of its motion. how far did it roll during the first 5.0 s of motion?
An object moving at a constant pace travels 5 meters in the first second; thus, it travels 45 meters in the third second.
In simple terms, what can the acceleration mean?The measurement of such a change in the speed called acceleration. Acceleration frequently, though not always, denotes a shift in speed. A thing that moves in a circle at a constant speed has still been moving forward since the direction of the motion is changing.
Calculation
the object starts from rest i.e. initial velocity, u = 0
and have uniform acceleration.
S = 5m and t = 1s
According to the formula of distance,
S = ut + 1/2 at²
5 = 0×1 + 1/2 a×1²
5 = 1/2a
a = 10m/s²
again, t = 3s
now, v = u + at
v = 0 + 10×3
v= 30m/s
Now, 2aS = v²-u²
2aS = 30²-0
2×10×S = 900
S= 900/20 = 90/2
S = 45m
Thus, the distance traveled by the body in 3rd second is 45m .
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a smooth wooden 40.0 n block is placed on a smooth wooden table. a force of 14.0 n is required to keep the block moving at constant velocity. what is the coefficient of sliding friction between the block and the table top? if a 20.0 n brick is placed on top of the wooden block, what force will be required to keep the block and brick moving at constant velocity?
The coefficient of sliding friction between the block and the table top is 0.35. The force will be required to keep the block and brick moving at constant velocity is 21 N.
The coefficient of sliding friction (μ_s) is given by the ratio of the force of friction to the normal force.
For the wooden block on the table top:
Fs = μs * N
where
Fs = 14.0 N (force required to keep the block moving at constant velocity)
N = 40.0 N (normal force on the block)
So
μs = Fs / N = 14.0 N / 40.0 N = 0.35
When a 20.0 N brick is placed on top of the wooden block, the normal force on the block increases to 60.0 N (40.0 N + 20.0 N).
The force required to keep the block and brick moving at constant velocity can be calculated using the same formula as above:
Fs = μs * N
where
N = 60.0 N (new normal force)
so
Fs = μs * 60.0 N = 0.35 * 60.0 N = 21.0 N
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When a wet cloth is hung up in a hot wind in the desert, it is
cooled by evaporation to a temperature that may be or so
below that of the air. Discuss this process in light of the second law of thermodynamics
Answer:
The process of a wet cloth being cooled by evaporation when hung in a hot wind in the desert can be explained by the second law of thermodynamics, as the evaporation of water molecules from the cloth increases their entropy and absorbs heat energy from the surrounding air, which causes the temperature of the wet cloth to decrease, and increases the overall entropy of the system.
Explanation:
The process of a wet cloth being cooled by evaporation when hung in a hot wind in the desert can be explained by the second law of thermodynamics. The second law states that entropy, or disorder, in a closed system will always increase over time.
When the wet cloth is hung in the hot wind, water evaporates from the cloth, absorbing heat energy from the surrounding air in the process. This causes the temperature of the wet cloth to decrease. In the process of evaporation, the entropy of the water molecules in the cloth increases, as they gain kinetic energy and escape into the air as water vapor. The entropy of the air molecules surrounding the cloth also increases, as they absorb the heat energy released by the evaporating water and become more disordered.
This process of evaporation, in which the wet cloth loses heat energy and becomes cooler, is an example of a process that increases the overall entropy of the system. This is in accordance with the second law of thermodynamics, which states that entropy in a closed system will always increase over time.
The cooling provided by the evaporation is due to the energy required to change the phase of the water from liquid to gas, this process is known as heat of vaporization, which is endothermic, meaning it absorb heat energy from the surrounding and hence the wet cloth is cooled.
About how much of the solar energy that reaches earth’s atmosphere is absorbed by the atmosphere?
"About three-fourth's of the solar energy that reaches earth’s atmosphere is absorbed by the atmosphere."
Solar energy is defined as the energy produced by the sun and is the major source of energy on earth. The ecosystem's plants benefit from it. The solar energy is absorbed by the atmosphere through compounds such as, water vapour, dust, ozone. These substances absorb about 71 percent of the solar energy which is approximately equivalent to three-fourths of it.
In total approximately 71% of incoming radiation is absorbed by the atmosphere and the Earth's surface while around 29% is reflected back to space and does not heat the surface.
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a sled weighing 100 n is held in place on a frictionless 20 degree slope a rope attached to a stake at the top. the rope is parallel to the slope. what is the tension in the rope? group of answer choices 34 n 37 n 94 n 47 n
The tension in the rope is 37 N. the rope is parallel to the slope. what is the tension in the rope.
what is tension ?
Tension is an emotional and mental state that can occur in response to stress, anxiety, fear, or excitement. It is often experienced as a feeling of tightness in the chest and neck area and can be accompanied by physical symptoms such as increased heart rate, sweating, and shallow breathing.
Tension can be triggered by a variety of situations, including conflict, deadlines, public speaking, financial pressures, and changes in relationships. It can also be caused by physical conditions such as pain and fatigue, as well as by negative thoughts and feelings, including worry, fear, and anger.
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an object slides at a constat speed on a frictonless surf.ace how much net force acts on teh object? how much
Only force or a normal force pointing upward. A shift is parallel to some of these forces, therefore no work occurs. Considering that the item is sliding at such a set speed, there's no pressure as in displaced direction.
In physics, what is frictionless?A surface is said to be frictionless if it has a force acting on any thing that is practically zero or insignificant, i.e., there is no resistance between the surface and the material, allow the substance to move and walk easily without any friction.
Does smooth imply a lack of friction?Since there are greater electromagnetic forces acting between the two surfaces when a surface has no roughness, it will have more static friction than a surface that is rough, making frictionless surfaces impossible. The author merely wishes to disregard drag for gentle slopes.
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mercury has a specific gravity of 13.6. how many milliliters of mercury have a mass of 0.35 kg? a. 0.0257 ml b. 0.026 ml c. 25.7 ml d. 26 ml e. 4760 ml
26 ml. of mercury have a mass of 0.35 kg. So option d is correct.
To find the volume of the mercury, we can use the relationship between mass, density, and volume, which is:
mass = density x volume
The density of mercury is 13.6g/cm^3 and its mass is 0.35 kg
so, we can rearrange the formula to:
volume = mass/density
To convert the volume to milliliters we can use the conversion factor 1cm^3 = 1 ml
So,
volume = (0.35 kg) / (13.6 g/cm^3) = (350000 g) / (13.6 g/cm^3) = 25714.28 cm^3 and since 1 cm^3 = 1ml
volume = 25714.28 ml
Thus, 26 ml. of mercury have a mass of 0.35 kg. So option d is correct.
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the windpipe of a typical whooping crane is about 5.0 ft. long. what is the lowest resonant frequency of this pipe, assuming it is closed at one end? assume a temperature of 37c.
The lowest resonant frequency of this pipe is approximately 58 Hz.
What is frequency?
Frequency is a measure of how often a particular event occurs or a certain value appears in a set of data. It is usually expressed as a number of occurrences or a percentage of the total. Frequency is a useful concept in statistics and probability theory as it can provide insight into the underlying data and help to draw conclusions about the data.
The speed of the sound is:
[tex]$v =331 \sqrt{1 + \frac{T}{273} }[/tex]
[tex]$v =331 \sqrt{1 + \frac{37}{273} }[/tex]
v = 352.72 m/s
The length of the pipe is:
L = 5.0 ft = 1.524 m
The wavelength is:
λ = 4L
= (4)(1.524)
= 6.096 m
[tex]$f = \frac{v}{\lambda}[/tex]
[tex]$ f =\frac{352.72}{6.096}[/tex]
homework a light plane travels a distance of 150 m along a runway before takeoff. find the work done by the plane engine if it is applying a force of 13500 n. a horse pulls a carriage by applying 450 n of force. find the traveled distance if the horse did 89 kj of work. a truck travels at a constant speed of 45 m/s. how much work did the truck engine do during a 2 hour period if it supplied a force of 25 kn of force? airflow lifts a 3.6 kg bird 50 m up. how much work was done by the flow?
airflow lifts a 3.6 kg bird 50 m up. how much work was done by the flow is 2,025,000J.
What is the purpose of airflow?
Data pipelines or workflows are scheduled and coordinated using Apache Airflow. The management, sequencing, coordination, and scheduling of intricate data pipelines from several sources is referred to as orchestration of data pipelines.
Airflow: A Python or Not?
The platform for creating, planning, and managing batch-oriented workflows is called Apache Airflow. With the help of the Python framework of Airflow, you may create workflows that connect to almost any technology.
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Help needed!
A force of 6.36 N acts on a(n) 4.9 kg object for 20.4 s. What is the objects change in momentum?
What is the change in velocity?
WU
Change in the momentum of the object with mass 4.9 kg on which force of 6.36 N acts for 20.4 s is 31.164kgm/s and change in velocity is 6.36m/s
As we know Force acting on any object is
F = m.a...........(1)
where m ⇒ mass
and a ⇒ acceleration
Also [tex]a=\frac{v}{t}[/tex]..........(2)
where v ⇒ velocity
t ⇒ time
so equation (1) can be written as:
[tex]F=\frac{m.v}{t}[/tex]..........(3)
Change in Momentum is equal to
p=m.v.......(4)
where m ⇒ mass
v ⇒ velocity
Now as per the question:
Force, F = 6.36 N
Mass, m = 4.9 kg
Time, t = 20.4s
putting the values in equation (3),
we get [tex]6.36=\frac{4.9*v}{20.4}[/tex]
by solving this we get a value of v=6.36m/s
putting the values in equation (4)
we get, Change in momentum
[tex]p=4.9*6.36\\p=31.164kg m/s[/tex]
so the change in velocity is 6.36m/s and change in momentum is 31.164kgm/s
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Calculate the mass (PE= mgh) of a object that has 15J of potential energy sitting on a shelf 3.75m off the ground.
For the given potential energy, the value of mass equals 0.4Kg.
The energy that was previously stored in the items before they were pushed out of balance by elastic rebound, gravity, or chemical reactions is released when the objects are displaced from their equilibrium locations.
Potential energy is the energy that an object accumulates because of its position, enabling it to perform more work. An extended rubber band, for instance, is full of potential energy. Similar to this, a ball will have more potential energy when released above the ground than when it falls.
Given,
The potential energy = 15J,
height of the object = 3.75m
Using the formula,
PE= mgh
Now substituting the values in the formula,
⇒ 15 = m × 10 × 3.75 [The value of acceleration due to gravity(g) = 10]
⇒ m = 15 / 10 × 3.75
⇒ m = 0.4Kg
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