A certain star is 14 million light-years from earth. the, Ask an Expert

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Q. A certain star is 14 million light-years from Earth. The intensity of the light that reaches Earth from the star is 4.00 x 10-21 W/m2. At what rate does the star radiate EM energy?

Q. A shop sign weighing 215 N is supported by a uniform 125 N beam. Find out the tension in the guy wire.

Find the horizontal and vertical forces exerted by the hinge on the beam.

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Category:- Physics
Reference No.:- M9350223

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