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Why doesn't the gravity on a picture on a shelf pull it downward?
Wiki User
∙ 14y ago
Actually the gravity on a picture on a shelf does pull it downward. If the gravity did not act on the picture, it would float away.
The reason the picture doesn't go down through the shelf can be explained by Newton's Third Law. Every action has an equal but opposite reaction.
The force of the picture on the shelf due to gravity is the same force of the shelf on the picture. Since both forces are the same, the picture remains stationary on the shelf.
Wiki User
∙ 14y ago
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Why dosent the gravity on a picture on a shelf pull it downward?
Because it is balanced by an elastic force due to the compression in the shelf.
What forces act on a framed picture on a shelf?
Gravity pulls the picture downward, but tension pulls the picture upward toward the nail. The forces are balanced, so the framed picture does not move.
If an object is on a shelf would its potential energy equal zero because its rate of gravity equals zero?
Not sure what you mean by 'rate of gravity'. All objects with mass are attracted to the Earth's centre by a force proportional to the mass of the object. The constant called the gravitational constant produces a downward acceleration of any free falling object of 9.81 meters/sec2, called G. The force on the object is equal to its mass M times G, ie MG Newtons. Now energy equals (force x distance) so if you raise an object H meters, the energy used to do this is MG x H Joules. This then becomes its Potential Energy, potential because this energy is available to do work if the object is allowed to fall. So the object on the shelf has potential energy, the amount being dependent on how far it is going to fall if the shelf is suddenly removed. Obviously potential energy is relative to the level of the observer or the base line.
How much energy (in joules) does a 3-kg vase possess when its placed on a shelf 2.5 meters above the ground?
Use the formula PE = mgh (potential energy = mass x gravity x height). Gravity is approximately 9.8 m/s2. Answer will be in Joule.
If gravity is the only force present what is the total mechanical energy of a book falling off a shelf at a time when its potential energy is 50 J and its kinetic energy is 60 J?
110
Why dosent the gravity on a picture on a shelf pull it downward?
Because it is balanced by an elastic force due to the compression in the shelf.
What force act on a framed picture on a shelf?
Gravity pulls the picture downward, but tension pulls the picture upward toward the nail. The forces are balanced, so the framed picture does not move.
What forces act on a framed picture on a shelf?
Gravity pulls the picture downward, but tension pulls the picture upward toward the nail. The forces are balanced, so the framed picture does not move.
The place where the ocoan floor suddenly plunges downward is called?
continental shelf
What does it mean if a picture that's wedged on a shelf falls in a nearly impossible manner and cracks across someones face in the picture?
It means one needs to hang the picture better or to place it safer on the shelf. It means that the law of gravity is immutable. That's all. Setting aside simple physics makes no sense, not even, or especially, when you want to asign some supernatural meaning to it.
1the place where the ocean floord suddenly plunges downward is calle?
The continental shelf
Can fruit go bad if its placed on a higher shelf?
it doesnt matter what shelf it's on. the best way to keep it longer is the fridge
List three differences between the continental shelf and the abyssal plain?
The continental shelf is an extension of the cotton, only beneath water. The continental slope begins beyond the shelf and slopes downward.
What is the Part of the earth or continent that drips gently downward under water?
The part of a continent that dips gently downward and is underwater is called the continental shelf. When a continent drops steeply in to the ocean it is called a continental slope.
Do you have a picture of the Elf on the Shelf from 1963?
I don't have access to images, but the Elf on the Shelf tradition began in 2005, so there wouldn't be pictures of it from 1963. It was created as a children's picture book in 2005 and became a popular holiday tradition in many households.
What energy of a book on a shelf is equal to the work done to lift the book to the shelf?
The potential energy of the book on the shelf is equal to the work done to lift the book to the shelf. This is because the potential energy of an object at a certain height is equivalent to the work done against gravity to lift it to that height.
What size is a trinket box?
picture 4 packs of cards in a square. around that size to the shelf.
