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Since the penny was up and stationary before (in your hand or wherever), it had potential energy at first. When it's dropped, it is converted into kinetic energy (energy of motion).
Calculate the gravitational potential energy between 5 m and 2 m above the ground. If you ignore air resistance, all of that potential energy will be converted to kinetic energy, so that's the answer.
The Law of Conservation of Energy doesn't give you much useful information in this situation. Anyway, what happens in terms of energy is simply that the dominoes initially have potential energy. While they are falling, the potential energy gets converted to kinetic energy. Once they hit the ground, the kinetic energy gets transferred to other forms of energy, in part the shock wave (vibration) imparted by the domino to the ground, in part heat.
This is actually two questions. Energy relating to the motion of an object is kinetic energy. Energy related to its position is potential energy (as with a brick suspended at some distance above the ground). Release the brick and its potential energy is converted to kinetic energy. The two are complementary. As the brick accelerates toward the ground its kinetic energy increases; as the distance decreases during that acceleration, it's potential energy decreases.
twanging sound as it spins down and stops, usually on one of it's flat sides. jingling sound when it is dropped on or thrown toward the ground. kreaking
Since the penny was up and stationary before (in your hand or wherever), it had potential energy at first. When it's dropped, it is converted into kinetic energy (energy of motion).
This is actually two questions. Energy relating to the motion of an object is kinetic energy. Energy related to its position is potential energy (as with a brick suspended at some distance above the ground). Release the brick and its potential energy is converted to kinetic energy. The two are complementary. As the brick accelerates toward the ground its kinetic energy increases; as the distance decreases during that acceleration, it's potential energy decreases.
This is actually two questions. Energy relating to the motion of an object is kinetic energy. Energy related to its position is potential energy (as with a brick suspended at some distance above the ground). Release the brick and its potential energy is converted to kinetic energy. The two are complementary. As the brick accelerates toward the ground its kinetic energy increases; as the distance decreases during that acceleration, it's potential energy decreases.
This is actually two questions. Energy relating to the motion of an object is kinetic energy. Energy related to its position is potential energy (as with a brick suspended at some distance above the ground). Release the brick and its potential energy is converted to kinetic energy. The two are complementary. As the brick accelerates toward the ground its kinetic energy increases; as the distance decreases during that acceleration, it's potential energy decreases.
Calculate the gravitational potential energy between 5 m and 2 m above the ground. If you ignore air resistance, all of that potential energy will be converted to kinetic energy, so that's the answer.
The Law of Conservation of Energy doesn't give you much useful information in this situation. Anyway, what happens in terms of energy is simply that the dominoes initially have potential energy. While they are falling, the potential energy gets converted to kinetic energy. Once they hit the ground, the kinetic energy gets transferred to other forms of energy, in part the shock wave (vibration) imparted by the domino to the ground, in part heat.
This is actually two questions. Energy relating to the motion of an object is kinetic energy. Energy related to its position is potential energy (as with a brick suspended at some distance above the ground). Release the brick and its potential energy is converted to kinetic energy. The two are complementary. As the brick accelerates toward the ground its kinetic energy increases; as the distance decreases during that acceleration, it's potential energy decreases.
twanging sound as it spins down and stops, usually on one of it's flat sides. jingling sound when it is dropped on or thrown toward the ground. kreaking
Yes they move toward lower potential energy.
Gravity is constantly acting on a hill, trying to pull it toward the earth at all times. Once the resistance of the land begins to buckle under the pressure of gravity, the land breaks free from itself and rushes toward the earth. Gravity gives the mud potential energy which is released and converted to kinetic energy once the,slide begins.
If you grow the Stem in the dark then it wouldn't be healthy/wouldn't grow, and if you grow the Root not towards the ground then it will be wobbly and go ON the ground INSTEAD of going into the ground and wouldn't grow :)
Gravity.