Which statement correctly describes magnetism?

A wave has a wavelength of 11 mm and a frequency of 6 hertz. What is its speed?

In a normal atom, how many electrons are there compared with protons?

If you push a cork into the neck of a bottle filled with air, what happens to the pressure inside the bottle?

Octane is an important component of gasoline. Octane will ignite at a temperature of 428°F. What is this temperature on the Celsius scale?

You drop a 2 kg book to a friend who stand on the ground at distance D=10.0 m below, if your friends out streched hand at distance d=1.50 m above the ground.

What did Ernest Reuther fourths gold foil experiment show about the nature of Atoms

A student pushes on a 20.0 kg box with a force of 50 N at an angle of 30° below the horizontal. The box accelerates at a rate of 0.5 m/s2. What is the value of the friction force on the box? 200 N 50 N 43 N 33 N

How does the kinetic energy of particles vary with temperature

Why is it wrong that igneous always has to become sedimentary because of the rock cycle

Which ion has a positive charge? valence electron covalent ion cation anion