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ololo11 [35]
3 years ago
13

If the average speed of an orbiting space shuttle is 27 800 km/h, determine the time required for it to circle Earth. Assume tha

t the shuttle is orbiting about 320.0 km above Earthâs surface, and that Earthâs radius is 6380 km.
Physics
1 answer:
balu736 [363]3 years ago
7 0

Answer:

 t = 1.51 hours

Explanation:

given,

Speed of space shuttle. v = 27800 Km/h

Radius of earth, R = 6380 Km

height of shuttle above earth, h = 320 Km

Total radius of the shuttle orbit

r' = R + h

r' = 6380 + 320

r' = 6700 Km

distance, d = 2 π r

   d = 2 π x 6700

time = \dfrac{distance}{speed}

time = \dfrac{2\pi\times 6700}{27800}

 t = 1.51 hours

Time require by the shuttle to circle the earth is equal to 1.51 hr.

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Explanation:

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3 years ago
During World War I, the Germans had a gun called Big Bertha that was used to shell Paris. The shell had an initial speed of 2.61
bonufazy [111]

Answer:

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The time of flight of the shell was 5.3 x 10² s

Explanation:

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When the shell hit, the vertical component (ry) of the vector position r is 0. See figure.

Then:

ry = 0 =  y0 + v0 * t * sin α + 1/2 g t²

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The articles appearing under "Milestones in Physics" will give an insight into special events or situations that have been decisive for the evolution of Physics

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Answer:

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3 years ago
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