3. What needs to be true about the temperature of a gas to apply boyle's law?
A. It needs to increase in temperature
B. Temperature doesn't matter
C. It needs to decrease in temperature
D. Temperature needs to stay the same

Consider a small frictionless puck perched at the top of a fixed sphere of radius r. if the puck is given a tiny nudge so that it begins to slide down, through what vertical height will it descend before it leaves the surface of the sphere? [hint: use conservation of energy to find the puck's speed as a func e conservation of energy to find the puck's speed as a function of its height at what value of this normal force does the puck leave the sphere? ] here on the puck.