2 years ago

A cylinder of radius r=10.0 cm and height h=20.0 cm

Physics

1 answer:

Olenka [21]2 years ago

7 0

D I think is the correct answer
If the cylinder is slightly

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Two astronauts are 2.00 m apart in their spaceship. One speaks to the other. The conversation is transmitted to earth via electr

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$D=1693742.7m$

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For sound waves we have v=d/t where v is the speed of sound and d the distance between the astronauts, while for electromagnetic waves we have c=D/t where c is the speed of light and D the distance between the spaceship and Earth. <em>We have written both times as the same</em> because is what is imposed by the problem, so we have t=d/v=D/c, which means:

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And for our values:

$D=\frac{(2m)(299792458m/s)}{354m/s}=1693742.7m$

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3 years ago