A hoop rolls with constant velocity and without sliding along level ground. Its rotational kinetic energy is: four times its translational kinetic energy half its translational kinetic energy one-third its translational kinetic energy twice its translational kinetic energy the same as its translational kinetic energy

An element becomes a positively charged ion when itloses protons. loses electrons. gains electrons. gains neutrons.

In addition to gravity, what is the other predominant force that affects the motion of a pendulum?

Consider a u-tube whose arms are open to the atmosphere. now equal volumes of water and light oil (ρ = 49.3 lbm/ft3) are poured from different arms. a person blows from the oil side of the u-tube until the contact surface of the two fluids moves to the bottom of the u-tube, and therefore, the liquid levels in the two arms are the same. if the fluid height in each arm is 30 in, determine the gage pressure exerted by the person on the oil by blowing.