The unit for momentum is which of the following?
a. n
b. kg-n
c. kg-m/s
d. all of these are units for momentum.

Write the equation for momentum, first using symbols for the variables, then using words for the variables.

Aperson stands on a platform, initially at rest, that can rotate freely without friction. the moment of inertia of the person plus the platform is ip. the person holds a spinning bicycle wheel with its axis horizontal. the wheel has moment of inertia iw and angular velocity ωw. take the ωw direction counterclockwise when viewed from above. part a what will be the angular velocity ωp of the platform if the person moves the axis of the wheel so that it points vertically upward?

What happens to the vapor pressure of a substance when its surface area is increased at constant temperature?