2 years ago

Which of the following best describes the location of the

Physics

1 answer:

marshall27 [118]2 years ago

8 0

Answer:

The mantle exists above the crust of the earth

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3 years ago

A satellite is to be launched into an orbit of radius,r Show that v = 2gr, where V is the

Snezhnost [94]

Explanation:

We start by using the conservation law of energy:

$\Delta{K} + \Delta{U} = 0$

$\dfrac{1}{2}mv^2 - G\dfrac{mM}{r} = 0$

Simplifying the above equation, we get

$v^2 = 2G\dfrac{M}{r}$

We can rewrite this as

$v^2 = 2\left(G\dfrac{M}{r^2}\right)r$

Note that the expression inside the parenthesis is simply the acceleration due to gravity $g$ so we can write

$v^2 = 2gr$

where $v$ is the launch velocity.

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MA_775_DIABLO [31]

I think this is the answer:

<span>Matter can change its state because of the pressure and/or the temperature.</span>

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3 years ago

1. Do you think that hand signals are important in officiating games? why?

alex41 [277]

Yeah, hand signals are important in officiating games. The hand signals are given by the referee who first signals the fault and then indicates which team has won the point. A point is indicated by one finger at the side of the court to indicate the winner of the rally.

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Answer:

1. shoot to hard

2. too short

Explanation:

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3 years ago

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