Sound waves will either be reflected (echo effect) or absorbed (dissipated) depending upon the material make-up of the barrier
The observable universe consists of galaxies and other matter that can, principally, be seen from Earth because the light signals have had time to reach us. Not everything in the sky is the way it is when we see it, because of the distance the light travels to reach us.
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Answer:
False
Explanation:
ac = v^2/r
acceleration is not dependent on the mass of the orbiting object.
