(a) Suppose a star is 7.77 ✕ 1018 m from Earth. Imagine a pulse of radio waves is emitted toward Earth from the surface

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answerhappygod
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(a) Suppose a star is 7.77 ✕ 1018 m from Earth. Imagine a pulse of radio waves is emitted toward Earth from the surface

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(a) Suppose a staris 7.77 ✕ 1018 m from Earth. Imaginea pulse of radio waves is emitted toward Earth from the surface ofthis star. How long (in years) would it take to reach Earth?
________ years
(b) The Sun is 1.50 ✕ 1011 mfrom Earth. How long (in minutes) does it take sunlight to reachEarth?
_______ minutes
(c) The Moon is 3.84 ✕ 108 mfrom Earth. How long (in s) does it take for a radio transmissionto travel from Earth to the Moon and back?
_____ s
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