Is the force of gravity that attracts my body to the Earth related to the force of gravity between the planets and the Sun
Certainly gravity is a force that exists between the Earth and the objects that are near it. As you stand upon the Earth, you experience this force.
An aeroplane flew at 600mph for 7 hours. How far did it travel?
Answer:
The aeroplane flew 4200 miles for 7 hours.
600 times 7 is 4200.
Describe the applications of thermal expansion?
Answer:
used in fixing iron rim with the wheel firmly
A dashing romanian count asks his sweetheart to marry him. She says she will give her reply when the moon is full. If he asked when the moon was at first quarter, how long will he have to wait?.
Given what we know, we can confirm that if the moon is at the first quarter, and her answer is to be given at full moon, the Romanian count will have to wait approximately 22 days.
How do we know that the full moon is 22 days away?The lunar cycle is how long the moon takes to orbit the earth. This is approximately 27 days, however, the lunar phases take approximately 29.5 days to complete. Since the first quarter moon phase represents the moon at 25% through its cycle, we can conclude that the remaining 75% that the count will have to wait corresponds to 22 days until the full moon.
Therefore, we can confirm that if the moon is at the first quarter, and her answer is to be given at full moon, the Romanian count will have to wait approximately 22 days.
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A ship's fathometer (an echo sounder) transmits a sound pulse and records the return of an echo 7.4 seconds later. If the speed of sound in water is 1500 m/second, what is the water depth in meters
Based on the velocity of sound in water, the depth of the water is 5550 m.
What is the depth of the water if a transmitted sound pulse returns an echo 7.4 seconds later?The velocity of sound in water = 1500 m/s
Time taken to receive the echo = 7.4 seconds
Distance travelled by sound = speed * timeDistance = 1500 * 7.4
Distance = 11100 m
Since this is a to and fro distance covered
Depth of the water = distance travelled/ 2Depth of water = 11100/2
Depth of water = 5550 m
Therefore, the depth of the water is 5550 m.
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A 0.05 kg arrow is fired at a velocity towards a 1.2 kg apple. The arrow sticks in the apple and both move at 3.6
m/s. What was the initial velocity of the arrow?
We have that the initial velocity is mathematically given as
V1=86.4m/s
VelocityQuestion Parameters:
A 0.05 kg arrow Is fired at a velocity towards a 1.2 kg apple. The arrow sticks in the apple and both move at 3.6m/s.Generally the equation for the Conservation of momentum is mathematically given as
M1V1=M2V2
Therefore
0.05*V1=1.2*3.6
V1=(1.2*3.6)/0.05
V1=86.4m/s
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nvm it dont matter no more
What is a hipótesis?
Answer:
an educated guess about the solution to the problem.
Explanation:
the hypothesis is is a specific, testable PREDICTION about what you expect to happen in your study.
Problem 23.5 The electric field strength 1.5 cm from an electric dipole, on the axis of the dipole, is 1.5×105 N/C.
We have that the dipole moment in nCm is considering the parameters
electric field strength 1.5 cm and the axis of the dipole, is 1.5×105 N/C. is
P=112.5nCmFrom the question we are told
The electric field strength 1.5 cm from an electric dipole, on the axis of the dipole, is 1.5×105 N/C.
Electric fieldGenerally the equation for the Electric field is mathematically given as
[tex]E=\frac{2P}{4\pi*r^3}\\\\Therefore\\\\P=\frac{ 1.5×10^5*1.5*10^{-3}}{2}\\\\[/tex]
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how would you respond to roger?
Which one is the best explanation of energy? Question 1 options: making transformations the ability to do work conservation of power measuring joules.
Energy is best defined as the ability to do work. Option A is correct. The work is the transformation of energy.
What is energy?Energy can be defined as the ability to do work because the work is the transformation of energy.
The work is done on an object the energy is transferred to the object from the first object.
Power is the measurement of the energy transfer over time. It can be calculated by the formula,
[tex]P = \dfrac Wt[/tex]
Where,
[tex]P[/tex]- power
[tex]W[/tex] - work
[tex]t[/tex] - time
Therefore, energy is best defined as the ability to do work.
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Answer:The ability to do work
Explanation:
The strike zone is an area over home plate extending approximately from
the armpits to the knees of a batter when in the batting position. The ball
must be pitched through this area in order for a strike to be called
*HELP ITS A TEST AND I GOT 2 MINUTES LEFT*
Answer:
if it is a true or false, the answer is true
Explanation:
2. Charlotte rode her bicycle for
a distance of 2000 meters in 8
minutes. Calculate the speed.
2000 meters = 2 kilometers
1 hour = 60 minutes
60 minutes / 8 minutes = 7.5
7.5 x 2 km = 15 km per hour
Answer: speed is 15 kilometers per hour
Answer:
4.17m/s
Explanation:
8min = 480s
v = Δd/Δt
v = 2000m/480s
v = 4.166666667m/s
v = 4.17m/s
4.17m/s x 3.6 = 15.0 km/h
Hope that helps
Imagine that you have been chosen to fly on the first
space shuttle that could travel at the speed of light.
Write a story about the trip that you would take
through space. Be sure to mention ALL of the
celestial objects that you see along the way, where
they are found, and their relative size.
My Trip through Space...
To imagine that you were chosen to fly the first space shuttle that could travel at the speed of light and write a story about the trip, it is necessary to research astronomy in more detail to generate a more consistent essay.
What would it be like to travel at the speed of light?In science fiction films, it is common to portray stars as white, illuminated and stretched lines, demonstrating speed, but this is an unfounded reasoning, since light has no color and stars do not move at that speed.
Therefore, a trip at the speed of light would be common, the only difference would be the reduction of time when arriving at the places, as for example, according to research, a trip from Earth to Pluto at the speed of light would take about five and a half hours.
It would also not be possible to see the stars as in the movies, as their photons are not visible.
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Define kinetic energy and thermal energy. Describe what happens to each as the temperature of a substances increases.Explain the process that causes dew to form on blades of grass.
Answer:
Heat is radiated, atmospheric moisture condenses at a rate greater than that at which it can evaporate, resulting in the formation of water droplets.
Explanation:
Dew forms on blades of grass as the temperature of the grass drops below the dew point temperature, causing water vapor in the air to condense into liquid water droplets on the cooler surface of the grass.
Kinetic Energy and Thermal Energy:
Kinetic Energy:
Kinetic energy is the energy possessed by an object due to its motion. It depends on both the mass of the object and its velocity. The formula for kinetic energy is KE = 1/2 * mass * [tex]velocity^2[/tex]. As an object moves faster or its mass increases, its kinetic energy also increases.
Thermal Energy:
Thermal energy, also known as heat energy, is the total energy of the particles (atoms and molecules) in a substance. It includes both the kinetic energy of the particles' random motion and the potential energy of their interactions. The temperature of a substance is a measure of the average kinetic energy of its particles. As the temperature of a substance increases, the average kinetic energy of its particles also increases, leading to higher thermal energy.
Effect of Increasing Temperature on Kinetic Energy and Thermal Energy:
When the temperature of a substance increases:
The average kinetic energy of its particles increases.
The kinetic energy of individual particles increases, resulting in faster molecular motion.
The thermal energy of the substance increases due to the collective increase in kinetic energy of its particles.
Formation of Dew on Blades of Grass:
Dew forms on blades of grass due to a process called condensation. Condensation occurs when water vapor in the air comes into contact with a surface that is at a lower temperature, causing the water vapor to change from its gaseous state to a liquid state.
At night, the Earth's surface loses heat through radiation, and this cooling effect reduces the temperature of the grass blades and other objects on the ground. As the temperature of the grass drops below the dew point temperature, which is the temperature at which the air becomes saturated with water vapor, water vapor in the surrounding air begins to condense into tiny water droplets on the surface of the grass blades.
The formation of dew is more common on clear, calm nights when there is less heat retained by the atmosphere and the ground radiates more heat. Dew can also form when the relative humidity is high, as the air already contains a significant amount of water vapor, making it more likely to reach the dew point temperature.
Hence, dew forms on blades of grass as the temperature of the grass drops below the dew point temperature, causing water vapor in the air to condense into liquid water droplets on the cooler surface of the grass.
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A weight hangs motionless from a spring, with a spring constant of 75 N/m. The spring stretched from its original length by 0.333 meters. How much weight hangs from the spring?
Explanation:
Since the weight hangs motionless from the spring, the weight is not in motion and is balanced from vertical components of force ( the spring force and the mg of the weight) so
[tex]f _s = mg[/tex]
where f s is the force of the spring.
Now, we can use Hooke Law
[tex]f _{s} = kx[/tex]
where k is the spring constant and x is the displacement of length the spring is stretched.
We know that mg=fs so
[tex] mg = kx[/tex]
mg=w so
[tex]w = kx[/tex]
k is 75 and x is 0.333
so
[tex]x = 75 \: \frac{n}{m} \times 0.33 \: m[/tex]
[tex]x = 24.975 \: n[/tex]
or
25 N or 24.98 N
What is the kinetic energy of 1000 kg car moving at a speed of 15 m/s?
Answer:
Explanation:
KE =1/2mv²
KE =1/2(1000kg)(15m/s)²
KE = 500kg (225 m²/s²)
KE = 112,500 JJ
what would have happened if there had been satellites during the time of the 1900 galveston hurricane?
Is a structure stable when force is applied in a certain direction?
Answer:
It can be, but no, mostly it won't be, and it will fall.
Explanation:
When you put force on a structure it will most likely fall unless, it's a big statue.
Which two kinds of information would best help describe the climate of
Seattle?
A. The predicted wind speed in Seattle over the next 24 hours
B. The highest temperature in Seattle last summer
C. The number of severe thunderstorms in Seattle over the last 10
years
D. The average amount of precipitation in Seattle during,March
Answer:
it is C,D
Explanation:
test proved
The average amount of precipitation in Seattle during, March. So, option D.
What is meant by climate ?The average and extreme temperatures and precipitation patterns over an extended period of time at a location define the climate there.
Here,
A local, regional, or global area may be mentioned in a climate description.
Changes in the earth's climate are referred to as climate change. A variety of internal and external variables contribute to this.
Over the past few decades, the climatic shift has gained global attention. The earth's life is also impacted by these climatic shifts in a number of ways.
The city of Seattle has a moderate climate, which the most widely used categorization system places in the Mediterranean zone, however some sources place it in the oceanic zone.
It has moderate, comparatively dry summers and cool, wet winters, encompassing features of both. Because it is milder and wetter than a true Mediterranean climate but still has a dry summer, the climate is frequently referred to as a modified Mediterranean climate.
Hence,
The average amount of precipitation in Seattle during, March. So, option D.
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hi can someone pls answer the question number 2 pls i srsly need it. thank u :)
Answer:1,0.95cm
2,21.82cms
3, 2.73
Explanation:
1,Its equation is following: 1o + 1i = 1f
1i = 1f - 1o
1i = 1−11 - 125
i = -7.64 cm - the image distance from the lens. The negative sign means that the image virtuali
h = 3.1* 7.6425 = 0.95 cm - the diameter of the coin’s imageimage
2,Use the lens equation to determine the image distance: 1/25 = 1/80 + 1/Di →
Di = 36.36 cm.
The image is real and on the opposite side of the lens as compared to the object.
The distance between object and image then is: 80 + 36.36 = 116.36 cm.
3,1/V+1/U =1/F ; 1/V =1/F-1/U ;- 1/15–1/48 =16-5/ 240 = 11/240 ; V =240/11
=21.82 CMS
IMAGE MAGNIFICATION V /U =21.82/48= 0.0.4546INVERTED
6 * 0.4546=2.7276 ≈2.73
Given ma=0.50 kg, use the graph to calculate the mass of cart B. Explicitly indicate the
principles used in your calculations.
The mass of Cart B in the cart system is : 1 kg
Given data :
mass of cart A = 0.5 kg
Making Use of the graph attached below
Principle of energy conservationwe will apply the principle of energy conservation of momentum
velocity of cart A ( from 0s to 1s ) = 1.5 m/s
mass of cart A = 0.5 kg
at this point cart B is at rest
Initial momentum = 0.75 kgms ( mass * velocity )
From ( 1.2secs to 2 secs ) :
combined Velocity of Cart A and Cart B = 0.5 m/s
momentum = 0.75 kgms
Therefore combined mass of cart system
= momentum / velocity
= 0.75 / 0.5
= 1.5 kg
Therefore mass of Cart B = combined mass - mass of cart A
= 1.5 - 0.5 = 1 kg
Hence we can conclude that the mass of cart B is = 1 kg
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What is the net electric force on the charge located at the lower right-hand corner of the triangle.
Answer:
[tex]\sqrt{3}\frac{kq^{2}}{a^{2} }[/tex]
Explanation:
none sadly
The net electric force on the charge is located at the lower right-hand corner of the triangle is [tex]Fr = \sqrt{3} \times\dfrac{q^2}{4 \times \pi \times 0 \times a^2 }[/tex].
What is electric force?Electric force is the attraction or repulsive interaction between any two charged things. Similar to any force, Newton's laws of motion describe how it affects the target body and how it does so. One of the many forces that affect objects is the electric force.
The given electrostatic force is:
F = k x Q1 x Q2 / R²
here, Q1 & Q2 = charges
R = distance between charges
The force between q and q
F1 = k x q x q / a² = F
The force between q and '-2q'
F2 = k x q x 2 x q / a² = 2 x F (towards '-2q' charge)
From the diagram given below, angle between F1 & F2 = A = 120°
So, the resultant force will be:
[tex]Fr = \sqrt(F1^2 + F2^2 + 2 \times F1 \times F2 \times cosA)\\Fr = \sqrt(F^2 + (2 \times F)^2 + 2 \timesF \times2 \timesF \timescos(120)\\Fr = \sqrt(5 \times F^2 - 2 \timesF^2)\\Fr = F \times \sqrt(3)[/tex]
Therefore, the net electric force on the charge is located at the lower right-hand corner of the triangle is [tex]Fr = \sqrt{3} \times\dfrac{q^2}{4 \times \pi \times 0 \times a^2 }[/tex].
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The question is incomplete. Your most probably complete question is given below:
The image of the triangle is attached below:
how to find the change in spring potential energy of the block-spring system from when the block is released to when the block has its greatest speed
To find the change in spring potential energy of the block-spring, we subtract the final from the initial kinetic energy of the block.
What is a spring potential energy?Spring potential energy is simply defined as the Potential energy stored as a result of the deformation of an elastic item, such as the stretching of a spring is referred to as elastic potential energy.
In conclusion, to find the Spring potential energy, we subtract the kinetic energy of the block at the final position from the kinetic energy of the block at the initial position.
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Write a short paragraph that explains the central idea of the article. Use at least two details from the article to support your response. ( Deadly and life-giving elements of the periodic table. )
A projectile is launched directly upward from the surface of the earth with an initial speed of 8. 8 km/s. Assuming air resistance is negligible, what is the maximum height of the projectile (in m)?.
Answer:
78m
Explanation:
A bicycle has a mass of 39.5kg on Earth . What would its weight be on moon (g=1.6m/s^2)
Answer:
63.2N
Explanation:
[tex]Solution,\\\\Mass(m)=39.5kg\\\\\\Gravity(g)=1.6m/s^{2} \\Now,\\\\Weight -on- moon=m*g=39.5*1.6m/s^{2} =63.2N[/tex]
what is the potential energy of an object with 14kg of mass and 3.4 m high
[tex]\\ \rm\Rrightarrow PE=mgh[/tex]
[tex]\\ \rm\Rrightarrow PE=14(10)(3.4)[/tex]
[tex]\\ \rm\Rrightarrow PE=476J[/tex]
Help!!! This is worth 30 points pls pls pls help help help
A tennis player bounces a tennis ball downwards with her racket. determine how fast the tennis ball is moving after it has moved 0.5 m downwards, assuming it was initially moving downwards at 4 m/s and accelerates downwards at 10m/s^2
Answer:
The tennis ball is moving 6m/s.
Explanation:
displacement(s) = 0.5 m
intial velocity(u) = 4 m/s
acceleration(a) = 10 m/s²
As we know,
2as = v²-u²
or, 2 ×10 × 0.5 = v²-4²
or, 10 = v²-16
so, v² = 36
so, v (final velocity) = 6 m/s
Apply third equation of kinematics
[tex]\\ \tt\hookrightarrow v^2=u^2+2as[/tex]
[tex]\\ \tt\hookrightarrow v^2=4^2+2(10)(0.5)[/tex]
[tex]\\ \tt\hookrightarrow v^2=16+10[/tex]
[tex]\\ \tt\hookrightarrow v^2=26[/tex]
[tex]\\ \tt\hookrightarrow v\approx 5m/s[/tex]
Which describes the electric field at the center of a ring of uniform negative charge?.
Answer:
A negatively charged particle -q is placed at the center of a uniformly charged ring, where the ring has a total positive charge Q as shown in the following figure. The particle, confined to move along the x axis, is moved a small distance x along the axis ( where x << a) and released. Show that the particle oscillates in simple harmonic motion with a frequency given by,
