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Leni [432]
3 years ago
15

An artificial satellite is moving in a circular orbit of radius 24,600 km. Calculate its speed if it takes 12hours to revolve ar

ound the earth.
Physics
1 answer:
denis-greek [22]3 years ago
6 0

Answer:

the speed of the satellite is 12,880.53 km/h

Explanation:

Given;

radius of the circular orbit, r = 24,600 km

time taken to revolve around Earth, t = 12 hours

The circumference of the satellite is calculated as;

L = 2πr

L = 2π x 24,600 km

L = 49,200π km

L = 154,566.36 km

The speed of the satellite;

v = L/t

v = 154,566.36 / 12

v = 12,880.53 km/h

Therefore, the speed of the satellite is 12,880.53 km/h

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Answer:

C) 2.44 × 106 N/C

Explanation:

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Here we have:

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3 years ago
An empty truck traveling at 10 km/h has kinetic energy. How much kinetic energy does it have when loaded so that its mass and it
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Answer:

8 time increase in K.E.

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(K.E.)₀ = 8 (1/2 × mv²) = 8 × K.E.

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3 years ago
Which best describes friction in the context of newton's laws?
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b

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