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Use the formula for gravitational potential energy (PE=mgh), and solve for height.
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What is the potential energy of a ten kg rock that is sitting on a hill that is 300 meters high?
The rock's PE is 29400 joules.
What is the change in the internal energy of a system that does 400 joules of work and absorbs 700 joules of heat?
400 joules.
How fast will an object be moving if its kinetic energy is 300 joules and has a mass of 0.05 kilograms?
The object's velocity will be 109.54 meters per second.
A 60 watt light bulb runs for 5 seconds how much energy does it use?
That would be 40x60 watt-seconds, also known as Joules, so it's 2400 Joules of energy. 3.6 MegaJoules is equal to one kilowatt-hour, also known as 1 unit.
Using Einstein's formula if an object has a mass of 300kg what is its energy?
according to Einstein E=mc2 OR Energy=mass*the speed of sound2 Where the speed of sound is 3x108m/s (300,000,000m/s). Thus, if the mass is 300kg: E=300*300,000,000 (Joules or J) E=90,000,000,000 J OR E=90GJ according to Einstein E=mc2 OR Energy=mass*the speed of sound2 Where the speed of sound is 3x108m/s (300,000,000m/s). Thus, if the mass is 300kg: E=300*300,000,000 (Joules or J) E=90,000,000,000 J OR E=90GJ
What is the potential energy of a ten kg rock that is sitting on a hill that is 300 meters high?
The rock's PE is 29400 joules.
What is the change in the internal energy of a system that does 400 joules of work and absorbs 700 joules of heat?
400 joules.
What is the average energy transfer of a TV in joules?
If you look at your television set's nameplate, it will specify its power in watts. A watt is simply a joule per second. So, if your television is rated at, say, 300 W, then it is transferring energy at the rate of 300 joules per second.
How much energy is needed to heat 50 liters of water to 50 degree centigrade?
300 calories, which is equal to about 1255.2 joules
How fast will an object be moving if its kinetic energy is 300 joules and has a mass of 0.05 kilograms?
The object's velocity will be 109.54 meters per second.
A 60 watt light bulb runs for 5 seconds how much energy does it use?
That would be 40x60 watt-seconds, also known as Joules, so it's 2400 Joules of energy. 3.6 MegaJoules is equal to one kilowatt-hour, also known as 1 unit.
Using Einstein's formula if an object has a mass of 300kg what is its energy?
according to Einstein E=mc2 OR Energy=mass*the speed of sound2 Where the speed of sound is 3x108m/s (300,000,000m/s). Thus, if the mass is 300kg: E=300*300,000,000 (Joules or J) E=90,000,000,000 J OR E=90GJ according to Einstein E=mc2 OR Energy=mass*the speed of sound2 Where the speed of sound is 3x108m/s (300,000,000m/s). Thus, if the mass is 300kg: E=300*300,000,000 (Joules or J) E=90,000,000,000 J OR E=90GJ
A student does 300 joules of work pushing a cart 3 meters due east then does 400 joules of work pushing the cart 4 meters due north the total amount of work done by the student is what?
700 joules
What is the potential energy of a 10.2 kg rock that is sitting on top of a hill that is 300 meters high?
P.E=mgh =10.2 by 10 by 300 P.E=30,600J
If It takes 300 N to move a box 10 meters in 10 seconds How much power is required?
The total work done or energy transferred is equal to the product of the force and the displacement in the direction of the force applied. In this case it would be 300N x 10m to get 3000J. This energy is transferred in 10 seconds and since power is energy transferred per unit time... 3000J divided by 10 seconds equals 300 Watts or 300 Joules per second.
What is the potential energy of a rock that weighs 100 newtons that is sitting on top of a hill 300 meters high?
Potential EnergyEp = mgh = wh9.8j
How is the steam used to produce electricity?
A 300 grams of water takes about 90 seconds to boil in a 2 kW kettle, so that is 2000 watts x 90 seconds which is 180,000 Joules of energy. But to convert that water completely into steam requires an extra 300x550x4.2 Joules, which is nearly 700,000 Joules. So converting it to steam takes 4-5 times as much energy as boiling it. That is why it takes a while for a kettle to boil dry.
