As speed increases, how does the potential, kinetic, and total energy levels change?

Jumps at 8 m/s at a 30 degree angle above the horizontal. how long was she in the air?

A pair of parallel plates, forming a capacitor, are charged. The plates are pulled apart to double the original separation, the charges on the plates remaining the same. What is the ratio of the final energy stored to the original energy stored?

In the following lever system, what is the clockwise torque? 18 Nm 240 Nm 360 Nm 480 Nm

A 55 kg baseball player slides into third base with an intial speed of 4.6 m/s. if the coefficient of kinetic friction between the player and the ground is 0.46, what is the player's acceleration?

A diver running 2.2 m/s drives out horizontally from the edge of a vertical cliff and 2.9 s later reaches the water below. How far from its base did the diver hit the water?

An astronaut drops a feather from 1.2m above the surface of the moon. If the acceleration of gravity on the moon is 1.6 m/s, how long does it take the feather to hit the moon's surface

Which best explains the relationship between the speed of sound and the medium through which it passes?

Find the magnitude of the torque produced by a 4.5 N force applied to a door at a perpendicular distance of 0.26 m from the hinge. Answer in units of N · m.

A box of weight w=2.0N accelerates down a rough plane that is inclined at an angle ϕ=30∘ above the horizontal, as shown (Figure 6). The normal force acting on the box has a magnitude n=1.

A dump truck accelerates uniformly from a resting position to a velocity of 35 m/s north in 20 seconds. What is the displacement? a.) 1.75 m north b.) 61.25 m north c.) 350 m north d.) 700 m north