Cumulative Exam — Cumulative exam Answers

The speed of light in a vacuum is approximately 2.99 × 108 m/s, and the speed of light through a piece of glass is approximately 1.97 × 108 m/s.

A charge of 8.4 × 10–4 C moves at an angle of 35° to a magnetic field that has a field strength of 6.7 × 10–3 T.

A boat moves up and down on a lake as a wave passes by. If the boat oscillates 10 times in 2 seconds, what is the period of the wave?

Aluminum has a frequency threshold of 9.846 × 1014 Hz. Which best explains what will happen when light with a frequency below the frequency threshold strikes aluminum?

A wave has a wavelength of 3.3 m and a speed of 5.6 m/s. What is the frequency of this wave?

How does an electric generator work?

A wire runs left to right and carries a current in the direction shown.

A transverse wave with a frequency of 125 Hz is traveling in the x-direction.

The magnetic field 0.02 m from a wire is 0.1 T. What is the magnitude of the magnetic field 0.01 m from the same wire?