488 J of work is done to a box which is moved across the floor for a distance of 8.9 m. What net force is required to act on the box to do this amount of work?

What is the size of earth?

What is created when charged particles are moving in a single direction and path?

Dirt is classified as a

What happens to the kinetic energy of water when it changes from the liquid state to the solid state

Suppose the electric field between two parallel plates kept constant but the distance between them is tripled. What happens to the voltage of the parallel plates? The voltage increases by a factor of three.

How could you find out which wire is broken in a cable?

Which block has more thermal energy? if the blocks are placed in thermal contact, will the thermal engery of the blocks change?

What is long term potentiation

Which of the following describes a conductor? A. a rubber shoe sole with electrons stuck to the bottom. B. Electrons moving freely through a copper wire. C. a balloon with a small region of negatively charged electrons. D.

An impala is an African antelope capable of a remarkable vertical leap. In one recorded leap, a 45 kg impala went into a deep crouch, pushed straight up for 0.21 s, and reached a height of 2.5 m above the ground.