Physics, 24.10.2019 18:43 annabanana1298
A0.20-kg stone is held 1.3 m above the top edge of a water well and then dropped into it. the well has a depth of 5.0 m. relative to the configuration with the stone at the top edge of the well, what is the gravitational potential energy of the stoneāearth system (a) before the stone is released and (b) when it reaches the bottom of the well? (c) what is the change in gravitational potential energy of the system from release to reaching the bottom of the well?
Answers: 2
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Is there a point between a 10 nc charge and a 20 nc charge at which the electric field is zero?
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In a system with only a single force acting upon a body, what is the relationship between the change in kinetic energy and the work done by the force? answers: work is equal to the change in kinetic energy.work depends on the square of the change in potential energy.work is equal to the negative of the change in kinetic energy.work is equal to the square of the change in kinetic energy
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You are your friend move a new refrigerator into his kitchen. you apply a horizontal force of 252 n in the negative x direction to try and move the 56 kg refrigerator. the coefficient of static friction is 0.61. (a) how much static frictional force does the floor exert on the refrigerator? give both magnitude (in n) and direction. magnitude n direction (b) what maximum force (in n) do you need to apply before the refrigerator starts to move?
Answers: 1
A0.20-kg stone is held 1.3 m above the top edge of a water well and then dropped into it. the well h...
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