The gravitational red shift is caused by
A) gravitational lensing.
B) rotating black holes.
C) time dilation.
D) Rayleigh scattering in the atmosphere.
C
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Fill in the blank(s) with the appropriate word(s).
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Indicate whether the statement is true or false
What is the intensity of a 70. dB sound?
What will be an ideal response?
A flat horizontal plate of area 400 cm2 is dragged over a 0.20 cm thick layer of oil at a speed of 30.0 cm/s. The oil is resting on a fixed horizontal surface. It takes a force 1.20 N applied to the plate to sustain this speed
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