Electromagnetic Waves
1. Gamma-ray bursters are objects in the universe that emit pulses of
gamma rays with high energies. The frequency of the most energetic
bursts has been measured at around 3.0 x 102 Hz. What is the wave-
length of these gamma rays?

Aboxcar traveling at 12 m/s approaches a string of 5 identical boxcars sitting stationary on the track. the moving boxcar collides and links with the stationary cars and they all move off together along the track. what is the final speed of the cars immediately after the collision? (you may take the mass of each boxcar to be 18,537 kg.)

7types of electromagnetic waves from lowest to highest frequency

A500-kg elevator is raised to a height of 10 m in 10 seconds. calculate the power of the motor. a. 490,000 w b. 49,000 w c. 4,900 w d. 490 w