Which standard unit is used to express frequency?

A bullet of mass 11.1 g is fired into an initially stationary block and comes to rest in the block. The block, of mass 1.01 kg, is subject to no horizontal external forces during the collision with the bullet.

What are three objects in a home that produce electromagnetic waves?

Simple one piece of paper into a small ball. keep the other paper flat. how does the amount of suave area compare?

3. What statement best describes an independent variable? A. The factor that does not change, but impacts the constant in an experiment B. The factor that's changed by the experimenter and impacts the constant in an experiment C.

How does quantum theory explain the working of a photocell? A. Each light wave with a certain minimum energy releases an electron from an atom. B. Each photon of light with energy below a certain value releases an electron from an atom. C.

What can you do to reduce the electric uses within your home?

The impulse experienced by a body is equivalent to the body's change in A) velocity B) kinetic energy C) momentum D) force

Does the system's kinetic energy increase, decrease, or stay the same? or is there not enough information to tell?

How do inertia and centripetal force combine to keep an object moving in circular motion?

Compare and contrast the average kinetic energy of 0.5 L of coffee at 34°C, 0.5 L of coffee at 38°C, and 0.25 L of tea at 43°C.