25. in a bizarre but harmless accident, a watermelon fell from the top of the eiffel tower. how fast
was the watermelon traveling when it hit the ground 6.40 seconds after falling?

When a book falls from a shelf to the ground without anyone pushing on it, no work is done on the book. true or false

Argon is adiabatically compressed from an initial volume of 16 liters to a final volume of 2 liters. by what factor do the following quantities change? do they increase or decrease? (a) the rms speed (b) the thermal energy of the gas (c) the molar specific heat cv (d) the pressure

An object moves from position +34m to the position -15m in 15 seconds. what is the total displacement? what is the total velocity?