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natta225 [31]
3 years ago
6

Which of these statements about the sun's energy is true? (5 points)

Physics
1 answer:
s344n2d4d5 [400]3 years ago
7 0
It is transferred evenly to water through air
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What type of change occurs when water changes from solid to a liquid a phase change a physical change and irreversible change both A and the
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A rifle is aimed horizontally at a target 50.0 m away. The bullet hits the target 2.90 cm below the aim point. . . Whats the bul
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3 years ago
Two satellites A and B orbit the Earth in the same plane. Their masses are 5 m and 7 m, respectively, and their radii 4 r and 7
Dmitry [639]

Answer:

The ratio of their orbital speeds are 5:4.

Explanation:

Given that,

Mass of A = 5 m

Mass of B = 7 m

Radius of A = 4 r

Radius of B = 7 r

The orbital speed of satellite A,

v_{A}=\sqrt{\dfrac{GM_{A}}{R_{A}}}......(I)

The orbital speed of satellite B,

v_{B}=\sqrt{\dfrac{GM_{B}}{R_{B}}}......(I)

We need to calculate the ratio of their orbital speeds

Using equation (I) and (II)

\dfrac{v_{A}}{v_{B}}=\sqrt{\dfrac{\dfrac{GM_{A}}{R_{A}}}{\dfrac{GM_{B}}{R_{B}}}}

Put the value into the formula

\dfrac{v_{A}}{v_{B}}=\sqrt{\dfrac{G\times5m\times7r}{G\times7m\times4r}}

\dfrac{v_{A}}{v_{B}}=\dfrac{5}{4}

Hence, The ratio of their orbital speeds are 5:4.

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3 years ago
Radio telescopes are said to "listen" to space because...
almond37 [142]

Answer:

2 they detect radio waves

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Which of the following does each different kind of atom represent?
r-ruslan [8.4K]

Answer:

B

Explanation:

because atoms make up an element.

5 0
4 years ago
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