14. A stone with a mass of 0.5 kg falls from a cliff. The stone was initially at rest when it began falling. Calculate the height from which the stone must fall in order for the kinetic energy of the stone to be 200 J
just before it hits the ground. (g = 9.81 m/s2)?

Compare the horizontal displacement of the two balls as they travel to the ground. what do you observe?

Nitrogen (n2) undergoes an internally reversible process from 6 bar, 247°c during which pν1.2 = constant. the initial volume is 0.1 m3 and the work for the process is 121.14 kj. assuming ideal gas behavior, and neglecting kinetic and potential energy effects, determine heat transfer, in kj, and the entropy change, in kj/s. show the process on a t-s diagram.

If water vapor with the mass of 35.0 grams is cooled and condensed into water in a closed system such as a closed glass jar, what is the mass of the water after the water vapor completely condenses? a) 34.5 grams b) 35.0 grams c) 35.5 grams d) the mass cannot be determined without knowing the volume