Question

1. What is the weight of a 1.2kg mass on Earth? 2. How much potential energy...

1. What is the weight of a 1.2kg mass on Earth?

2. How much potential energy is given to a 1.0kg mass when raising it up 1.0 meters (on Earth)?

3. If a 1000kg car doubles its speed from 2m/s to 4m/s, by what factor does its kinetic energy increase?

4.An athlete pushes a 2kg shot put with 20N of force during a throw. How much does it accelerate?

please don't hand write the answers.

Science   Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

I will be glad to see your comment if you have any query and thumb up if you are satisfied. Thanks...

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
How much energy is required to accelerate a spaceship with a rest mass of 124 metric...
How much energy is required to accelerate a spaceship with a rest mass of 124 metric tons to a speed of 0.565 c? Hints: In the acceleration process the energy we have is converted to the kinetic energy of the spaceship. The classical kinetic energy of an object is half of the mass multiplied by the square of the velocity. What is the relativistic form of the kinetic energy? Every day our Earth receives 1.55×1022 J energy from the Sun....
How much energy is required to accelerate a spaceship with a rest mass of 128 metric...
How much energy is required to accelerate a spaceship with a rest mass of 128 metric tons to a speed of 0.581 c? Hints: In the acceleration process the energy we have is converted to the kinetic energy of the spaceship. The classical kinetic energy of an object is half of the mass multiplied by the square of the velocity. What is the relativistic form of the kinetic energy? Incorrect. Tries 2/20 Previous Tries Every day our Earth receives 1.55×1022...
1. How much energy is required to accelerate a spaceship with a rest mass of 138...
1. How much energy is required to accelerate a spaceship with a rest mass of 138 metric tons to a speed of 0.514 c? 2. Every day our Earth receives 1.55×1022 J energy from the Sun. If we were able to use 0.75 percent of this energy to accelerate spaceships, then how many missions would be possible in one year?
1. How much energy is required to accelerate a spaceship with a rest mass of 120...
1. How much energy is required to accelerate a spaceship with a rest mass of 120 metric tons to a speed of 0.515 c? 2. Every day our Earth receives 1.55×1022 J energy from the Sun. If we were able to use 1.05 percent of this energy to accelerate spaceships, then how many missions would be possible in one year?
Estimate how much energy would be deposited into the Earth if it is hit by a...
Estimate how much energy would be deposited into the Earth if it is hit by a ten tonne meteor traveling on an orbit around the Sun with a semi-major axis of 3.0 A.U. Note: in order to hit the Earth this meteor can not be in a circular orbit. Consider two cases: At the point of impact (a) the meteor is traveling parallel and in the same direction as the Earth’s orbit and (b) the meteor is traveling parallel and...
How much gravitational potential energy must a 3140-kg satellite acquire in order to attain a geosynchronous...
How much gravitational potential energy must a 3140-kg satellite acquire in order to attain a geosynchronous orbit? The answer to the above question is 1.67x10^11 J. How much kinetic energy must it gain? Note that because of the rotation of the Earth on its axis, the satellite had a velocity of 467 m/s relative to the center of the Earth just before launch. Doing a 1/2mv^2 doesn't get the correct answer. The law of conservation of energy would state that...
Part A How much gravitational potential energy must a 3200-kg satellite acquire in order to attain...
Part A How much gravitational potential energy must a 3200-kg satellite acquire in order to attain a geosynchronous orbit? Express your answer to three significant figures and include appropriate units. Answer : (Value) (Units) Part B How much kinetic energy must it gain? Note that because of the rotation of the Earth on its axis, the satellite had a velocity of 469 m/s relative to the center of the Earth just before launch. Express your answer to three significant figures...
Mr. Lake pushes a block of mass of 100kg with a force of 120N across a...
Mr. Lake pushes a block of mass of 100kg with a force of 120N across a smooth surface. Mr. Earle pushes the same block in the opposite direction with an unknown force. 1) If the block accelerates at a rate of 0.7m/s^2, how much force was Mr. Earle pushing with? (Just give me the magnitude; don't worry about the direction) 2) If this block is pushed over a distance of 4m, how much work does Mr. Lake do on the...
A force ?(?) = −5.0?2+7.0? Newtons acts on a particle. a) How much work does the...
A force ?(?) = −5.0?2+7.0? Newtons acts on a particle. a) How much work does the force do on the particle as it moves from ? = 2.0m to ? = 5.0m, in Joules? b) Find the potential energy due to this force, at position x = 2, in Joules, by finding the potential energy as a function of x, U(x). You should use the reference point of the potential energy being 0 when x = 0. c) Using either...
A weight lifter raises a barbell of mass 72 kg to a height of 0.65 m...
A weight lifter raises a barbell of mass 72 kg to a height of 0.65 m above his chest. The potential energy of the barbell increases in raising the barbell by approximately Select one: a. 459 J b. Zero c. –459 J d. None of these Three masses 2.0 kg, 3.0 kg and 6.0 kg are located at positions (3.0, 0), (6.0, 0), and (–4.0, 0), respectively, in meters from the origin (0,0). The location of the center of mass...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT