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Why does a book on a high shelf have more potential energy than on a low shelf?
Wiki User
∙ 12y ago
Since potential energy equals mgh. When h, height increases potential energy also increases. If h is 0 then p.e is 0/
Wiki User
∙ 12y ago
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How much does your gravitational potential energy change when you jump as high as you can?
this dick
What is the potential energy of an apple is 6 joules the apple is 3 meters high what is the mass of the apple?
The idea is to use the formula for potential energy: PE = mgh. Replace the numbers you know, and solve for the missing number.
What is the formula for mass x distance?
there is no such things as a mass x distance formula. mass x acceleration = force mass x velocity = momentum mass x gravity x height = gravitational potential energy mass x velocity-squared x 1/2 = kinetic energy mass x distance = don't take physics in high school!
How much power must the legs of a 70-kg man develop in order to run up a staircase 5 m high in 9 seconds?
Work = (force) x (distance) = (mass) x (gravity) x (height) = (70 x 9.8 x 5)Power = work / time = (70 x 9.8 x 5) / (9) = 3811/9 watts = about 0.51 horsepower.Actually, that's the rate at which his gravitational potential energy increasesas his altitude increases, but in order to accomplish it, he has to generateand expend energy significantly faster than that.
How much power does it take to lift 250 N 40 m high in 2 sec?
Energy = Work = (force) x (distance) = (250) x (40) = 10,000 newton-meters = 10,000 joulesPower = energy/time = 10,000 joules/2 seconds = 5,000 watts = about 6.7 horsepower (rounded)
Is Book on a high shelf chemical or potential energy?
Potential energy.
What form of stored energy does a book have while it is still on a high shelf?
How does a book on a higher shelf have more potential energy than a book on the lower shelf
What is the mass of a book on a 2 meter high shelf with 20 joules of potential energy?
10
What sort of energy does a book have if it falls off a high shelf?
Before it falls it has gravitational potential energy. While it falls, the potential energy gets converted to kinetic energy. Part of this gets dissipated by friction - mainly converted to heat. Once it hits the ground, all the energy will be converted to heat.
What is the definiton of gravitational potential energy?
Gravitational potential energy is a type of energy that an object possesses because of where it is placed in a gravitational field. The higher the object the more energy it has, so if you had an object that was on the ground and then you put it on a high shelf then it would have more energy when it is on the shelf.
Do a stretched spring and a box on a high shelf both have potential energy why or why not explain you answer?
yes because is more
What kinda of energy is a box of matches?
A box of matches on a high shelf has gravitational potential energy.A box of matches falling from the high shelf has kinetic energy.A box of matches on fire has heat, sound and light energy.A box of matches on its own has chemical potential energy.
What is the potential energy of a 5 kg object sitting on a shelf 3 m high?
PE = m x 9.8 x h:So, 5kg x 9.8 x 5m = 245 joules potential energy.
Is a book falling down from a high shelf kinetic or potential energy?
It's neither. It's just a piece of fruit. While it's hanging and not moving, it has gravitational potential energy because of its position, and food potential energy because of its chemical composition. When it separates from the tree and moves to a different location, such as the ground or a processing plant, it has kinetic energy because of its motion. Its chemical potential energy doesn't change until it's processed, consumed, or rotted.
How much kinetic energy does a book have just it hits the floor?
Just about as much as it had potential energy before it started falling - since most of the potential energy will be converted into kinetic energy. The exact amount depends from how high it falls.
What is the potential emery of a 10 newton book on a shelf 2.5 meters high?
For gravitational potential energy: PE = weight x height PE = mgh (that is, mass x gravity x height) The first formula is appropriate in this case, since you already know the weight.
What is the definition of pontential energy?
Potential energy takes many different definitions, but the most common is due to gravity. Say move a book from the floor to a shelf that is one meter above the ground. The book has a mass of 2 kilograms. While the book is on the floor, it has zero potential energy. Since potential energy is defined as the height times the mass times the gravitational constant, and height is equal to zero at that point, there is no potential energy. But when it is moved to one meter high, the math goes as follows: 1 meter X 2 kilograms X 9.8 meters per second squared(The gravitaional Constant) = 19.6 Joules(The unit of potential energy).
