Wavelengths just shorter than visible light are classified as
A. gamma rays.
B. x-rays.
C. microwaves.
D. ultraviolet.
E. radio waves.
D. ultraviolet.
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Without the ozone layer, life on Earth would be in danger from increased levels of _________ radiation.
a. UV b. X-ray c. gamma ray d. infrared e. microwave
While the gondola is rising at a speed of 5.0 m/s, a passenger in a balloon-supported gondola throws a small ball up at a speed of 2.0 m/s relative to his body. A person who measures the ball's velocity at the instant of release will find that the ball's velocity relative to the ground at that instant is
A. 2.0 m/s, up. B. 2.8 m/s, down. C. 3.0 m/s, up. D. 5.0 m/s, up. E. 7.0 m/s, up.
Particle A (mass = m, charge = Q) and B (mass = m, charge = 5 Q) are released from rest with the distance between them equal to 1.0 m. If Q = 12 ?C, what is the kinetic energy of particle B at the instant when the particles are 3.0 m apart?
a. 8.6 J b. 3.8 J c. 6.0 J d. 2.2 J e. 4.3 J
Earthquake waves are classified as P waves and S waves. Which of the following statements is true about these waves?
a. The P wave is transverse as is the S wave. b. The P wave is longitudinal as is the S wave. c. The P wave is transverse and the S wave is longitudinal. d. The P wave is longitudinal and the S wave is transverse. e. Both the P and S waves are mixtures of longitudinal and transverse waves.