A 15 kg ball is thrown straight upward with a speed of 20 m/s. What is the maximum height the ball reaches?

As energy is conserved, the potential energy at the ball's highest point is equal to the kinetic energy when it is thrown.

A. 14.0 m
B. 19.8 m
C. 20.4 m
D. 40.8 m

What are the phases shown in a and d called?

Water at room temperature of 20.0°c is poured into an aluminum cylinder which has graduation markings etched on the inside. the reading in the graduations is 300.0 cc. the cylinder with the water in it is then immersed in a constant temperature bath at a temperature of 100°c. what is the reading for the level of water on the graduations of the cylinder after the water and the cylinder reach thermal equilibrium with the bath? the volume coefficient of expansion of water is 2.07 x 10^-4 k-1, and the linear coefficient of expansion of aluminum is 23.0 x 10^-6 k-1. a) 305.0 cc b) 304.0 cc c) 303.5 cc d) 303.3 cc e) 304.5 cc

10 newton object is placed 3 meters from the fulcrum. at what distance on the other side would you need to place a 15 newton object to balance the lever? show your work!