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anonymous
 one year ago
The kinetic energy (KE) of a ball the moment it hits the ground when dropped from a height above the ground is exactly equal to the potential energy (PE) of the ball when it was released.
Which is true about this closed physical system?
a. It obeys the second law of thermodynamics.
b. It obeys the first law of thermodynamics.
c. It obeys the law of conservation of energy.
anonymous
 one year ago
The kinetic energy (KE) of a ball the moment it hits the ground when dropped from a height above the ground is exactly equal to the potential energy (PE) of the ball when it was released. Which is true about this closed physical system? a. It obeys the second law of thermodynamics. b. It obeys the first law of thermodynamics. c. It obeys the law of conservation of energy.

This Question is Closed

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.2Hint: If we have the equation: KE=PE, then energy is conserved, since we have this situation: dw:1432943992297:dw so the sum: KE + PE = mgh, at both positions

shamim
 one year ago
Best ResponseYou've already chosen the best response.1Anyway thermodynamics deals with heat

shamim
 one year ago
Best ResponseYou've already chosen the best response.1Total energy is always equal is called conservation of energy

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0thanks for the help!!
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