6. As the sky diver's fall theenergy is converted into . a. Energy is created and destroyed.
b. Energy is created but not destroyed.
C. Energy is not created but is destroyed.
d. Energy is neither created nor destroyed.

Select for each of the following statements whether it is correct or incorrect. (a) in an isothermal expansion of an ideal gas. (b) the temperature remains constant. (b) the pressure remains constant. (c) there is work done by the gas. (d) there is heat added to the gas. (e) the change in internal energy equals zero.

On mars a rock falls an unknown vertical distance from a resting position and lands in a crater. if it takes the rock 2.5 seconds to fall, how high is the cliff the rock fell from? mars' surface gravity is 3.8 m/s2.

Acar is traveling 35 mph on a smooth surface . if a balanced force is applied to the car what happens?