4. Climbing up a tree Charlotte and her lunchbox have a weight of 650 N and she

climbs a height of 22 m-how much work does she do in climbing the tree?

How does distance affect force when the amount of work remains the same

A car accelerates from rest at - 2.50 m/s². (Include the sign in your answers.) What is the velocity at the end of 3.1 s?

Electrons are modeled using a "cloud"around the nucleus because they A) can not be precisely located B) travel at the speed of light C) exists in many places at once D) move in an orbit about the nucleus

How would you convince somebody that the momentum of an isolated system is constant?

Why isn't there a change in temperature during a phase change? a. The energy is transferred to the surrounding air c. The temperature would increase b. The energy would be used by the increasing motion of molecules d. All of the above

Accelerations are produced by equal forces or unequal forces?

A wave travels through a medium. As the wave passes, the particles of the medium vibrate in a direction perpendicular to the direction of the wave's motion. The wave is a. longitudinal. c. electromagnetic. b. a pulse. d. transverse.

Two carts undergo an inelastic collision where they stick together. Cart A has an initial velocity v0, and the second cart B is initially at rest.

a car slows down from 22 m/s to 3 m/s at a constant rate of 3.5 m/s squared. how many seconds are required before the car is traveling at 3 m/s?

An AC generator has 80 rectangular loops on its armature. Each loop is 12 cm long and 8 cm wide. The armature rotates at 1200 rpm about an axis parallel to the long side. If the loop rotates in a uniform magnetic field of 0.