When Rutherford directed a stream of alpha particles at a gold foil, some particles
A) bounced back.
B) continued through the foil.
C) deflected at a variety of angles.
D) all of the above
E) none of the above
Answer: D
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The energy from the accretion disk around a black hole would show gravitational red shift due to its immense gravity and tidal distortion of space there
Indicate whether the statement is true or false
Neutron stars do NOT have
A) sizes comparable to large cities. B) large surface gravities, compared to the Sun. C) masses greater than 1.4 solar masses. D) strong magnetic fields. E) rotation periods comparable to the Sun's.
As an artificial radio source, the spinning Earth would have a period of about a day
Indicate whether the statement is true or false
Two beams of coherent light are shining on the same piece of white paper. With respect to the crests and troughs of such waves, darkness will occur on the paper where:
a. the crest from one wave overlaps with the crest from the other. b. the crest from one wave overlaps with the trough from the other. c. the troughs from both waves overlap. d. darkness cannot occur as the two waves are coherent.