Unlike a phonograph record that has a constant angular speed, a CD scans information at a constant linear speed (130 cm/s). Does a CD therefore rotate at a constant angular speed, or varying angular speed?

In a test run, a certain car accelerates uniformly from zero to 24.0 m/s in 2.95 s. (a) What is the magnitude of the car's acceleration? (b) How long does it take the car to change its speed from 10.0 m/s to 20.

Differences of structuralism and functionalism

How a typical human eye sees color?

An electron moving with a velocity of 1.1 ✕ 106 m/s along the positive y-axis encounters a uniform B-field of 6.0 T oriented along the negative z-axis. Find the force on this charged particle due to this magnetic field.

What objects in the universe give out their own light?

What is the stopping distance at night for a passenger vehicle traveling at 50 mph?

How does mass affect weight

Communicable diseases can be prevented by:

If a photon has a frequency of 5.20 * 1014 hertz, what is the energy of the photon? Given: Planck's constant is 6.63 * 10-34 joule·seconds.

Water flowing from a waterfall before it hits the pond below?