What is the wave speed of a wave that has a frequency of 100 HZ and Z wave length of 0.30 meter

A ham radio operator broadcasts at a frequency of 3.0 * 108 Hz. The speed of an electromagnetic wave is a constant, 3.0 * 108 m/s.

Which of the following dose not occur when two continental plates collide

What might motivate someone to study forensics

The sum of potential and kinetic energies in the particles of a substance is called energy. True or False

What causes the phases of a new moon

Is the following sentence true or false? Some information about an object or process may be missing from a model.

If V is a velocity, l a length, and v a fluid property having dimensions of L2T-1, which of the following combinations are qualitatively dimensionless (show work for a through d) : (a) V l v (b) Vl/v (c) V2v (d) V / (l v)

What happens to the total mechnical energy of the apple as it falls from the tree?

Fair Bonus Question: Derive the equation for gravitational potential energy, starting with the definition of work.

A juggler throws a bowling pin into the air with an initial velocity. Another juggler drops a pin at the same instant.