When a car, moving at velocity v, collides head on with a light volley ball, initially at rest, the ball bounces off with velocity
A) -v.
B) -4v.
C) -1.5v.
D) -2v.
E) -v/2.
D
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Essentially, the Great Red Spot is
A) traveling north and south across Jupiter's face. B) composed primarily of iron oxide. C) a large cyclonic storm (hurricane). D) always located within 10 degrees of Jupiter's north pole. E) Neptune's largest atmospheric feature.
Discuss why the new theory, called quantum mechanics, was so successful
What will be an ideal response?
A supernova that occurred 30,000 years ago in a galaxy 100,000 light years away will be observed on Earth:
A) 30,000 years from now. B) 70,000 years ago. C) 70,000 years from now. D) 100,000 years ago. E) 100,000 years from now.
What wavelength monochromatic source in the visible region (390 to 710 nm) can be used to constructively reflect off a soap film (n = 1.46) in air if the film is 70.0 nm thick?
a. 558 nm c. 450 nm b. 430 nm d. 409 nm