The pressure of the dam water is P = 8.47 ×[tex]10^8[/tex] W
Given : Length of the dam = 221 m
And the output = 1300 MW
The dam generates electricity and thus the length of that is 100 meters
Rate of flow = 665 m/s
P = Δ F / ΔT
Also pressure × Q = Power -- 1
Q = volume flow rate
To know the pressure
P = pgh
substitute this value in the above equation and we get
pgh × Q = P
1300 × 100 × 9.8 × 665 = P
this implies pressure = 847210000
that is P = 8.47 ×[tex]10^8[/tex] W
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when raindrops form, the force of gravity pulls them toward the ground. which statement is correct about this chain of events?(1 point)
The correct statement about when raindrop form the force of gravity pull them towards the ground and causes the raindrops to accelerate.
In all the provided options, the most accurate answer will be the force of gravity causes the raindrops to accelerate.
When are in drop is form It is form of water and water contains mass, because of the presence of mass in the water of the raindrop the gravitational force of the earth works on the raindrop.
The force of gravity on the raindrop causes the it to accelerate.
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Complete question - When rain drops form, the force of gravity pulls them toward the ground. Which statement is correct about this chain of events?(1 point) The force of gravity causes the rain drops to form. There is a positive correlation between gravity and rain drop formation. There is a negative correlation between gravity and rain drop formation. The force of gravity causes the rain drops to accelerate.
what is the intensity of an electromagnetic wave with a peak electric field strength of 127 v/m? (answer must be in three digits)
The Intensity of the electromagnetic wave with a peak electric field strength of 127 V/m is 20.9W/m².
The relation between the intensity of an electromagnetic wave and the peak electric field strength is,
I = ecE²/2
Where,
e is the electric permittivity,
c is the speed of the electromagnetic wave,
E is the peak electric field.
The peak electric field is given to be 127 V/m, so, putting values,
I = 8.85 x 10⁻¹² x 3 x 10⁸ x 127 x 127/2
I = 20.9 W/m².
So, the intensity of the electromagnetic wave is 20.9 W/m².
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what can you conclude about energy transformations and the conservation of mechanical energy for the motion of a pendulum
Explanation:
At every point in the motion of the pendulum the total mechanical energy is conserved. The sum of the gravitational potential energy and the kinetic energy, at each point of the motion, is a constant, which is the total mechanical energy.
What is the frequency of a wave with a velocity of 500 m/s and a wavelength of 25 m?.
Answer:
[tex] \Huge{\bold{20 Hz}} [/tex]
Explanation:
The frequency of the wave given it's velocity and wavelength can be found by using the formula
[tex] frequency = \frac{v}{ \lambda} [/tex]
where [tex] \lambda [/tex] is the wavelength
From the question
v = 500 m/s
[tex] \lambda [/tex] = 25 m
We have
[tex]f = \frac{500}{25} = 20 \\ [/tex]
We have the final answer as
20 HzHope this helps you
for a standing wave formed on a string with fixed boundaries at either end, the frequency of the wave of harmonic order is related to the distance between the boundaries and the wave speed by group of answer choices
For a standing wave formed on a string with fixed boundaries at either end, the frequency of the wave of harmonic order is n ( v / 2 L ) where n = 1, 2, 3...
For a standing wave formed on a string with fixed boundaries at either end, the wavelength is λ / 2
Let the distance between the boundaries be L.
v = f λ
v = Wave speed
f = Frequency
λ = Wavelength
λ = v / f
L = n λ / 2
L = n v / 2 fn
fn = n ( v / 2 L ) where n = 1, 2, 3...
Therefore, for a standing wave formed on a string with fixed boundaries at either end, the frequency of the wave of harmonic order is related to the distance between the boundaries and the wave speed by n ( v / 2 L ) where n = 1, 2, 3...
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we have implemented volume encryption using a self-encrypting drive. which of the following attacks is the volume still vulnerable to? select all that apply.
Issue a new key at least every 2 years and use that key for all subsequent encryption tasks.
Disk encryption is a technology that protects data by way of converting it into unreadable code that can't be deciphered easily by unauthorized human beings. Disk encryption makes use of disk encryption software or hardware to encrypt each bit of records that is going on a disk or disk extent.
Full-disk encryption can ensure that no meaningful data may be extracted from a tool without the device password/encryption key, whichever is used to fasten the tool. hence, FDE can make sure the safety of device facts at relaxation.
There are major computer encryption types: full disk encryption and record-stage encryption. complete Disk Encryption or whole disk encryption protects the entire quantity and all documents on the force in opposition to unauthorized access.
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In which concept does price and quantity supplied move in the same direction?.
The concept law of supply shows that price and quantity supplied move in the same direction.
The law of supply relates price changes for a product to the quantity supplied. In differentiation from the law of demand, the law of supply relationship is coordinated, not converse. The higher the cost, the higher the quantity provided. Lower costs mean decreased supply, all else held equal. Higher prices donate suppliers an incentive to supply more of the item or product, expecting their costs aren't expanding as much. Lower costs result in a fetched crush that checks supply. As a result, supply inclines are upwardly inclined from cleared out to right. As with demand, supply limitations may constrain the cost flexibility of supply for a product, whereas supply shocks may cause an unbalanced cost to alter for a basic commodity.
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just after vertical launch from earth surface, the space shuttle takes 8.0 ss to reach a speed of 160 km/hkm/h.
The required force F = 2504.04 N
acceleration is defined as the change in speed over time,
where v and u represent the final and starting velocities, respectively.
When v=160 km/h and u=0 are transformed to m/s,
acceleration equals apparent weight;
hence, if g=9.81 and m=84 kg
thus the answer can be calculated by :
a = (v - u) / t
on substituting the value we get
a = 160 / 8
this implies a = 20 [tex]m/s^2[/tex]
Thus the force = F = 84( 9.81 + 20 )
F = 2504.04 N
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a driver will have more time and space to exercise options by searching ........ seconds ahead, identifying objects that could require a change in speed or direction 12-15 seconds ahead, and possible alternative path 8-12 seconds in advance.
A driver will have more time and space to exercise options by searching 20-30 seconds ahead.
what is excersise options?1. Shrug holds The main muscles that shoulder shrugs target are the trapezius muscles. ...
2. Tighten the glutes The easiest way to work out the buttocks while being in a sitting position is to simply squeeze the muscles. ...
3. Feet lifting Being stuck behind the wheel for long hours can hurt the feet. ...
4. Abdominal Hollowing ...
5. Seated Pelvic Tilt ..?
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a student drops a basketball into a pool from a height of 5 meters while a friend records the approximate splash height. they want to make a bigger splash in their next trial. how can they achieve this?(1 point) responses they can drop the same ball from a lower height. they can drop the same ball from a lower height. they can drop the same ball with less speed. they can drop the same ball with less speed. they can use a ball that has a larger circumference. they can use a ball that has a larger circumference. they can use a ball with more mass.
The students only need to use a ball with a larger circumference in order to make a bigger splash in their subsequent trial.
How is volume and mass ?We can state that an object's volume and mass are directly proportional. The mass of the object rises directly in proportion to the volume. The density of the substance is equal to the gradient of the graph.
Volume is the amount of space an object or substance occupies. Mass is a measurement of how much matter there is in an object or substance. Density is the ratio of an object's or substance's volume (the amount of space it occupies) to the amount of matter it contains.
Similarly in this question the basket ball being bigger will displace more area.
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A rocket rises at 5 ft/s between 0 and 10 seconds. Afterwards it rises at 15 ft/s for another 15 seconds. Use one loop to calculate the rockets height at the end of the 25 seconds. Use h as the variable for height.
The height of the rocket, given that the rocket rises at 5 ft/s between 0 and 10 seconds and afterwards it rises at 15 ft/s for another 15 seconds is 275 ft
How do I determine the height of the rocket?First, we shall determine the height attained in the first 10 seconds. This can be obtained as follow:
Velocity = 5 ft/sTime = 10 secondsHeight in first 10 seconds =?Height = velocity × time
Height in first 10 seconds = 5 × 10
Height in first 10 seconds = 50 ft
Next, we shall determine the height in the next 15 seconds. This is shown below:
Velocity = 15 ft/sTime = 15 secondsHeight in next 15 seconds =?Height = velocity × time
Height in next 15 seconds = 15 × 15
Height in next 15 seconds = 225 ft
Finally, we shall determine the height of the rocket at the end of the 25 seconds. This is shown below:
Height in first 10 seconds = 50 ftHeight in the next 15 seconds = 225 ftHeight at the end =?Height at the end = 50 + 225
Height at the end = 275 ft
Thus, the height of the rocket is 275 ft
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what is the length of a single pendulum oscillating in earth's surface having the same period as t accept above for each of four masses
A straightforward pendulum with a period of one second will be 0.25 meters, or 25 cm, long.
What are a pendulum's period and frequency?Please feel free to explore how the pendulum would function on different planets, but we'll use the Earthly value of 9.80665 m/s2 for our calculations. Use the formula above to get the oscillation period: T = 2π√(L/g) = 2π * √(2/9.80665) = 2.837 s . As the period's reciprocal, determine the frequency: f = 1/T = 0.352 Hz .
What are the two things that influence a pendulum's period?The length of the string and gravitational acceleration are two elements that can alter a pendulum's period.
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a rock of mass m is dropped to the ground from a height h. a second rock, with mass 7m, is dropped from the same height. when the second rock strikes the ground, which of the following best describes its kinetic energy?
Two rocks, with mass m and 7m, are dropped from a height h. The kinetic energy of rock with mass 7m is 7 times that of the rock with mass m.
When an object is dropped from a certain height, it will experience a free fall motion. Its velocity just before the object hits the ground is:
v = √(2gh)
Hence, it the velocity doesn't depend on the mass of the object. Therefore, in the given case, the velocity of mass m and mass 7m will be the same.
The kinetic energy of an object with m is given by:
Ek = 1/2 . mv²
Since the velocities of the two rocks are the same, the kinetic energy is directly proportional to their masses.
Ek1 : Ek2 = m1 : m2
Ek1 : Ek2 = m : 7m
Ek2 = 7 Ek1
Thus, the kinetic energy of rock with mass 7m is 7 times that of the rock with mass m.
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Given the formula, the Lewis Structure and the ball and stick model of each question below,
explain the simple molecule's:
Electronic Geometry
Molecular Geometry
Polarity
Intermolecular Forces
Compound Name
The Lewis hypothesis of chemical bonding aids in our understanding of how atoms are arranged and bound together to form molecules.
Each valence electron of an atom is represented by a dot in the Lewis structure, while a covalent link between two atoms is represented by a line. It also goes by the name "electron dots structure."The "balls" (spheres) in 3D models of the ball and stick symbolize various atoms. The atoms' connecting rods, or "sticks," stand in for the chemical bonds.The length (diameter) of spheres is far less than that of rods in the ball and stick model, allowing for a clearer view of the atoms and bonds. As a result, it is unable to show how much space the molecule actually takes up.
Since hard bonds and holes don't exhibit systems with irregular angles, the sticks can also be made flexible. This is particularly true of double and triple bonds, which are lengthier and more flexible than single bonds. They can facilitate geometric isomerism and restrict rotation(cis-trans).
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What is the frequency of radio wave with a wavelength of 25 m?.
The frequency of a radio wave with a wavelength of 25 m is 0.12 × 10⁸ Hz.
An example of electromagnetic radiation is radio waves. The wavelength of a radio wave is substantially greater than that of visible light. Radio waves are widely used by people for communication. Both rectangular and circular antennas are used by this radio tower to send and receive radio frequency energy.
The relationship between frequency and wavelength is inversely proportional. The wavelength of the wave with the highest frequency is the shortest.
Wave velocity=Wavelength× Frequency
Given, λ = 25m
c = 3 × 10 ⁸ m/s
f =?
c = λ × f
3 × 10⁸ = f × 25
f = 3 × 10⁸ / 25
f = 0.12 × 10⁸ Hz.
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An 8.25kg point mass and a 15.0 kg point mass are held in place 50.0 cm apart. A particle of mass m is released from a point between the two masses 13.0cm from the 8.25kg mass along the line connecting the two fixed masses. Find the magnitude of the acceleration of the particle. Find the direction of the acceleration of the particle.
The direction of the acceleration of the particle is 8.825 kg mass.
Solution:
Acceleration = G m1 /r1^2 - G m2/r2^2
=6.67*10^-11 (0.048 - 0.01) towards 8.825 kg mass
= 2.5346 *10^-12 m/s^2 towards 8.825 kg mass
Particles have velocity in the negative direction and constant acceleration in the positive direction. When an object accelerates, its acceleration is in the same direction as its motion. When an object slows down, its acceleration is in the opposite direction of its motion.
Acceleration in uniform circular motion is toward the center along the radius. Instantaneous acceleration is the limit of average acceleration as Δt approaches zero. The velocity vector v always points in the direction of travel. The acceleration vector can point anywhere.
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uranus is much smaller and less massive than jupiter. uranus rotates on its side, giving it extreme seasons. this may have been caused by an impact. uranus has some large moons and rings. uranus's appearance is nearly featureless; very bland. uranus has no magnetic field. uranus's core is probably molten and very hot. uranus's blue color is due to being mostly made of methane, which absorbs long wavelengths.
The correct statements from the following list about how Uranus is different from Jupiter, and how its rings and moons formed and evolved includes the following:
Uranus is much smaller and less massive than Jupiter.Uranus's appearance is nearly featureless; very bland.Uranus has some large moons and rings.Uranus rotates on its side, giving it extreme seasons. This may have been caused by an impact.Describe Uranus?
Uranus is described as the seventh planet from the Sun. The name Uranus is a reference to the Greek god of the sky, Uranus, who, according to Greek mythology, was the great-grandfather of Ares, grandfather of Zeus and father of Cronus.
Some known facts about Uranus includes the following:
Uranus is the coldest planet in the Solar SystemUranus orbits the Sun on its sideA Season on Uranus lasts one long day which is equal to 42 yearsUranus is the second-least dense planet.Learn more about Uranus at: brainly.com/question/13770002
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igure 9-24 shows an overhead view of four particles of equal mass sliding over a frictionless surface at constant velocity. the directions of the velocities are indicated; their magnitudes are equal. consider pair- ing the particles. which pairs form a system with a center of mass that (a) is stationary, (b) is stationary and at the origin, and (c) passes through the origin
The pairs that form a system with a center of mass that
(a) is stationary are ac, bc and dc.
(b) is stationary and at the origin is bc
Coordinates of the four particles are:
a = ( - 4 m , 2 m )
b = ( 4 m , 2 m )
c = ( - 4 m , - 2 m )
d = ( 4 m , - 2 m )
The center of mass of two particles of equal masses lies exactly at the center of the tile joining them. If two particles are moving in the opposite direction with equal speeds, then their center of mass will be stationary.
Therefore, the pairs that form a system with a center of mass that
(a) is stationary are ac, bc and dc.
(b) is stationary and at the origin is bc
(c) passes through the origin are ad and bd
The given question is incomplete. The complete question is:
Figure 9-24 shown in the image attached shows an overhead view of four particles of equal mass sliding over a frictionless surface at constant velocity. The directions of the velocities are indicated; their magnitudes are equal. Consider pairing the particles. Which pairs form a system with a center of mass that (a) is stationary, (b) is stationary and at the origin, and (c) passes through the origin?
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you are performing an analysis on your model. you select five faces, 3 edges and 2 vertices and apply a force of 20lb. what is the total force applied to the model using solidworks simulation?
The model is subjected to a 100lb total force with the use of solidworks simulation.
How do you locate the reaction force in a simulation using solidworks?
Following analysis execution, right-click Results and choose List Result Force to display response forces. Select Reaction force from the Options menu in the PropertyManager. Additionally, you can choose Results Advisor > List Result Force (Simulation CommandManager). For rigid bodies, reaction forces are not considered.
What standards are most appropriate for evaluating ductile material failure in fusion 360 simulation?The default criterion is yield strength. The yield strength to Von Mises equivalent stress ratio is used to calculate the safety factor. For ductile materials like steel and aluminum in particular, the Von Mises stress is a reliable indicator of failure.
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a chair lift loaded with two passengers weighs 500 lbs. determine the forces in the cable to the left and right of the lift.
The forces in the cable to the left and right of the lift are Tright = 939.7 lb and Tleft = 984.8 lb.
Equilibrium of the system
∑ Fx= 0 ⇒ Tleftcos20° = Tright cos 10°
Tleft = cos10°/cos20° × Tright
Tleft = 1.048 Tright
∑Fy = 0 ⇒ Tleftsin20 + Trightsin10 = W
(1.048 × sin 20° + sin 10°) Tright
0..532 Tright = 500lb
Tright = 939.7 lb
Tleft = 1.048 × 939.7
Tleft = 984.8 lb
The state of a system when neither its internal energy status nor the state of motion tends to change over time. If a simple mechanical body experiences neither linear acceleration nor rotational acceleration, it is said to be in equilibrium. If this state is not disturbed by an external force, it will persist unbrokenly. When all forces acting on a single particle are added together and equal to zero, equilibrium results.
The complete question is attached as an image.
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in a game of tug of war the red team is pulling with a force 500 n to the left while the blue team is pulling with a force of 340 n to the right. what will be the net force of the flag in the middle?
The tug-of-war winner is the team who pulls the rope the hardest.
Reason being: The rope moves in the direction of greater force.
We are familiar with Newton's second law of motion, which describes circumstances in which all of the forces are not balanced. As a result, the acceleration is a function of our applied force. Inversely correlated with body mass is acceleration as well. The acceleration of the body produced is proportional to the net force we apply and in the direction of the force we apply, which is an alternative explanation for the second law. Consequently, the rope is pulled harder when playing tug of war. The acceleration of the rope increases as more force is applied. And the direction of the rope's movement is in the direction of a stronger force. Rope motion is in the direction of greater force.To know about Newton's second law of motion-
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a 275-kg glider is being pulled along by a 2,000-kg jet. the system accelerates to the right at 2.2 m/s2. how much thrust is provided by the jet's engines, in newtons?
The amount of thrust provided by the 2,000 kg jet's engine to 275-kg glider is 5,005N.
Thrust is defined as the reaction force described quantitatively by Newton's third law. When the system expels or accelerates mass in one direction, then it feels same acceleration in reverse direction.
We know very well that if a body is moving with some acceleration a and having some mass m then, change in momentum of that body is equal to force applied on the body by the ground surface.
In other words, F = ma
where m is mass and a is acceleration of the body
Total mass of the combined system =mass of glider + mass of jet's engines
=275kg +2000kg
=2275Kg
Acceleration given as 2.2m/sec².
So, on putting both of values.
=>F=2275×2.2
=>F=5,005 Kg-m/sec² or
=>F= 5,005N
Hence, amount of thrust provided is 5,005N.
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in what direction relative to a magnetic field does a moving charged particle experience maximum deflecting force? minimum deflecting force?
Charged particles will experience a maximum force when traveling perpendicular to the magnetic field.
Which way does the magnetic field deflect charge?In accordance with this law, an electron or other charged particle traveling in a magnetic field will be deflected by the field at a right angle to both the field's direction and the direction of the particle. (As you apply that rule, keep in mind that the cathode ray electrons are moving in the opposite direction to that of regular current.)
How do you tell which way the deflection is going?A positive charge that is traversing a magnetic field perpendicularly at the top is deflected. The positive charge will be deflected in the direction that is predicted by the right-hand rule, the bottom. Positive charges will be deflected according to a related left-hand rule.
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in a laser generator, what is found at both ends that allows for the amplification and stimulated emission of laser light?
In a laser generator, micro reflectors is found at both ends that allows for the amplification and stimulated emission of laser light.
What is laser generator?
A laser beam is produced by a laser generator that uses electrical discharges to excite a gas mixture. This kind of generator operates on the same fundamental tenet as a laser beam, which is to "pump" a medium with energy before the medium returns to its initial state and emits photons.
What is amplification?
amplification (countable and uncountable, plural amplifications) (countable and uncountable, plural amplifications) the process or outcome of enlarging, extending, or adding the act of independently increasing a quantity, particularly voltage, power, or current, or the result of doing so (physics). Gain. (Electronics)
Therefore, in a laser generator, micro reflectors is found at both ends that allows for the amplification and stimulated emission of laser light.
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If this problem is solved assuming (wrongly) that all the ice melts, a final temperature of T = ?16.5�C is obtained. The only way that could happen is if the system were not isolated, contrary to the statement of the problem. In the exercise, you must also compute the thermal energy needed to warm the ice to its melting point. QUESTION What effect would doubling the initial amount of liquid water have on the amount of ice melted? (Select all that apply.) Half as much of the ice will melt. Twice as much of the ice will melt. The final temperature will be higher. The final temperature will be lower. The final temperature will be the same. All the ice will melt.
The effect on doubling the initial amount of water will be twice as much of ice will melt.
Let us suppose that,
M = mass of ice = 4.8 kg
L = latent heat of fusion = 334000 J/kg
Heat of melting of ice is given as
Qmelting = ML = (4.8)(334000) = 1603200 J
m = mass of water = 10.6 kg
c = specific heat of water = 4186
ΔT = change in temperature = 16.5 °C
Heat lost by water is given as
Qlost = m c ΔT = (10.6) (4186)(16.5) = 732131.4 J
As the heat lost by water is smaller than the heat required to melt all the ice , hence all ice does not melt and hence the final temperature is 0°C.
Therefore, the mass of ice melt can be calculated as follows:
M' = mass of ice melted
Using the law of conservation of heat,
M' L = Qlost
M' (334000) = 732131.4
M' = 2.19 kg
Thus, the amount of liquid water is twice the mass of ice melted.
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How fast would a light beam appear to einstein if he were traveling in the same direction at 90% of the speed of light?.
If Einstein were traveling in the same direction of a light beam at 90% of the speed of light, the light beam would be travelling at 10% of speed of light.
Speed of light, c = 3 * 10⁸ m / s
90 % of Speed of light = 3 * 10⁸ * 0.9
90 % of Speed of light = 2.7 * 10⁸ m / s
Relative speed = 3 * 10⁸ - 2.7 * 10⁸
Relative speed = 0.3 * 10⁸ m / s
Relative speed = 0.1 c = 10% of speed of light
Relative speed of one object with respect to another is the difference in speeds of both objects if they are travelling in same direction. Relative speed of one object with respect to another is the sum of speeds of both objects if they are travelling in opposite direction.
Therefore, if Einstein were traveling in the same direction of a light beam at 90% of the speed of light, the light beam would be travelling at 10% of speed of light.
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if a planet had a semi-major axis length of 2.3 au as it orbits the sun, what would be its period in years?(
The period of the planet is obtained as 3.5 years .
What is the period?We know that we can be able to obtain the period of the planet by the use of the Kepler's law. By the use of the Kepler law, we can see that the square of the period of the planet is equal to the cube of the length of the semi major axis.
We can now write;
T^2 = r^3
Now we have the semi-major axis length as 2.3 au.
We would now have to substitute the values and then obtain the period of the planet from the equation as;
T = r^3/2
T = (2.3)^3/2
T = 3.5 years
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a scale from which a rock is suspended reads 5 n when the rock is out of the water and 3 n when the rock is completely submerged in the water. the density of the rock is
The density of the object is 1.67 g/cm^3.
What is the density of the object?We know that we can be able to obtain the relative density of an object as the ratio of the weight of an object in air to the weight of the object in water. Another name for the relative density of the object is also the specific gravity of the object.The density of an object is the mass of the object compared to its volume. The equation for density is: Density = mass/volume or D = m/v. Each substance has its own characteristic density because of the size, mass, and arrangement of its atoms or molecules.Density is the mass of an object divided by its volume. Density often has units of grams per cubic centimeter (g/cm3). Remember, grams is a mass and cubic centimeters is a volume.The density of an object or substance is its mass divided by its volume: Density = Mass ÷ Volume. The units of density depend on the units used for mass and volume, but are usually: g/cm³ (if mass is measured in g and volume in cm³). The more dense a substance is, the heavier it feels for its size.Density is commonly expressed in units of grams per cubic centimetre. For example, the density of water is 1 gram per cubic centimetre, and Earth's density is 5.51 grams per cubic centimetre.Thus;
Relative density = Weight in air/weigh in water
= 5 N/3N
= 1.67
Given that the density of water is 1 g/cm^3
Density = Relative density * density of water
= 1.67 * 1 g/cm^3
= 1.67 g/cm^3
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A bullet of mass 0.016 kg traveling horizontally at a high speed of 210 m/s embeds itself in a block of mass 3 kg that is sitting at rest on a nearly frictionless surface.
What is the speed of the block after the bullet embeds itself in the block?
Calculate the total translational kinetic energy before and after the collision.
(A) After the collision, the block's final speed was 1.485 m/s.
(b) The total kinetic energy of the system after the collision is 3.33 J, while the kinetic energy before the collision is 627.2 J.
(c) The energy lost to frictional force during the impact accounts for the difference in the two kinetic energies.
How to calculate kinetic energy ?Final block velocityThe principle of linear momentum conservation is used to calculate the block's final speed following the collision.
v(m1 + m2) = m1u1 + m2u2.
0.016(280) + 3(0) = v(0.016 + 3)
4.48 = 3.016v
v = 4.48/3.016
v = 1.485 m/s
Kinetic energy overall both before and after a collisionFollowing are the calculations for the kinetic energy before to the impact;
K.E I = ¹/₂mv²
K.Ei = 0.5 x 0.016 x 280²
K.Ei = 627.2 J
The total kinetic energy of the system after the collision is calculated as follows;K.Ef equals 1/2(m1 + m2) v2.
K.Ef = ¹/₂(0.016 + 3) 1.485²
K.Ef = 3.33 J
The difference in the two kinetic energy is due to energy lost to frictional force during the collision.To Learn more About kinetic energy refer to:
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while the prefrontal is necessary for the manipulation of order information in memory, the ... deals with its maintenancewhile the prefrontal is necessary for the manipulation of order information in memory, the posterior parietal cortex deals with its maintenance
The prefrontal cortex is activated during working memory, as evidenced by fMRI results in human studies and neurophysiological recordings in animal models.
what is parietal cortex ?
The parietal lobe is also an important component of spatial information, as it allows us to judge size, distance, and shape. The capacity to read written language and solve mathematical issues is provided by an unique triangular-shaped region known as the parietal association cortex.
The prefrontal cortex is activated during working memory, as evidenced by fMRI results in human studies and neurophysiological recordings in animal models. The neural correlate of working memory has traditionally been thought to be persistent activity during the delay period of working memory tasks, following the offset of stimuli that subjects are required to remember. Several findings in recent years have cast doubt on the role of this activity. According to some, activity in other brain areas, such as the primary visual and posterior parietal cortex, is a better predictor of information maintained in visual working memory and working memory performance;
dynamic patterns of activity may convey information without requiring any persistent activity at all; and prefrontal neurons may be ill-suited to represent non-spatial information. about the features and identity of remembered stimuli.
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