How are Newton's and Einstein's theories of gravity related?
A) Newton's theory applies only to planetary motion while Einstein's theory applies only to black holes
B) Einstein's theory is an approximation of Newton's theory
C) the two theories are identical
D) Newton's theory is an approximation of Einstein's theory
D
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In general, which type of planet would you expect to cause the largest Doppler shift in the spectrum of its star?
A) a massive planet that is close to its star B) a massive planet that is far from its star C) a low-mass planet that is close to its star D) a low-mass planet that is far from its star
The Sun has been on the main sequence
a. for about 10 million years. b. for about 5 billion years. c. forever. d. for about 14 billion years.
A small ball is released from rest at position A and rolls down a vertical circular track under the influence of gravity
Describe the phenomenon known as refraction
What will be an ideal response?