Which two of the following statements about inertia are true? 1. Inertia is the force that keeps a moving object in motion.
2. Inertia is the force that keeps a stationary object at rest.
3. Inertia is the natural tendency of a stationary object to resist motion.
4. Inertia is the natural tendency of a moving object to resist a change in its velocity.

"an open tank has the shape of a right circular cone. the tank is 6 feet across the top and 5 feet high. how much work is done in emptying the tank by pumping the water over the top edge? note: the density of water is 62.4 lbs per cubic foot."

How will the system respond to a temperature increase?

An electron is ejected into a horizontal uniform e⃗ field at a parallel horizontal velocity of v0. assume the electron's initial position x0, initial velocity v0, time t, magnitude of electric field e, electron's mass m, and the magnitude of the electron's charge |e|. ignore the force that earth exerts on the electron. assume the e⃗ field is in the same direction as the initial velocity. part a define the equation for the electron's velocity. express your answer in terms of the variables v0, |e|, t, e, and m.