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When we crack a whip, a loud noise is created. Why?
Q. Assume dark matter exists throughout space with a uniform density of 6.00×1028kg/m3.
(a) Find the amount of such dark matter inside a sphere centered on the Sun, having the Earth’s orbit as its equator.
(b) Explain whether the gravitational field of this dark matter would have a measurable effect on the Earth’s revolution.
(b) Explain whether the gravitational field of this dark matter would have a measurable effect on the Earth’s revolution.