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Anuta_ua [19.1K]
3 years ago
12

Two satellites are in circular orbits around Earth. Satellite A has speed vA. Satellite B has an orbital radius nine times that

of satellite A. What is the speed of Satellite B?
A. vA.9
B. vA/3
C. 3vA
D. 9vA
Physics
1 answer:
zaharov [31]3 years ago
5 0

Answer:

option B

Explanation:

given,

Satellite B has an orbital radius nine times that of satellite A.

R' = 9 R

now, orbital velocity of the satellite A

v_a =\sqrt{\dfrac{GM}{R}}........(1)

now, orbital velocity of satellite B

v_b=\sqrt{\dfrac{GM}{R'}}

v_b=\sqrt{\dfrac{GM}{9R}}

v_b=\dfrac{1}{3}\sqrt{\dfrac{GM}{R}}

from equation 1

v_b=\dfrac{v_a}{3}

hence, the correct answer is option B

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Answer:

The horizontal and vertical distances are x = 210 m and y = -240.35 m, respectively.

Explanation:

Using the equation of the displacement in the x-direction, we have:

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x=v_{ix}t

Where:

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Now, we need to use the equation of the displacement in the y-direction to find the vertical distance. Here we have an acceleration (g)

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Then, the vertical position at 7 s is:

y=-\frac{1}{2}(9.81)(7)^2

y=-240.35\: m

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I hope it helps you!

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<h3>What is Solenoid ?</h3>

An electromagnet known as a solenoid creates a regulated magnetic field using a helical coil of wire whose length is significantly higher than its diameter. When an electric current is sent through the coil, it may create a consistent magnetic field inside a defined region of space.

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The magnetic field within the solenoid can be calculated by the expression given below.

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to learn more about solenoid go to -

brainly.com/question/1873362

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