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dimulka [17.4K]
3 years ago
9

On your first attempt you leave the surface of the earth at v = 5534 m/s. how far from the center of the earth will you get?

Physics
1 answer:
Tamiku [17]3 years ago
8 0
<span>It's another energy balance equation, though: energy to start with is the same as energy that you end with. Suppose that we start a distance r0 from the Earth and end a distance r1 from the Moon, then the energy balance gives: 1 v02 - G M / r0 - G m / (D - r0) = 1 v12 - G M / (D - r1) - G m / r1 ...where m is the moon's mass. One simple limit takes D ? ? and 1 v02 ? G M / r0 (the escape velocity equation), to yield: 1 v12 ? G M / r1 v1 ? ?( 2 G M / r1 ) = 2377 m/s.</span>
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erma4kov [3.2K]

Answer:

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8 0
3 years ago
Evaporation only occurs at the surface of a liquid
Veseljchak [2.6K]

yes

evaporation starts on the surface

8 0
4 years ago
A small, closed chamber of gas is heated. When the gas in the chamber expands,it does 5 J of work on a piston. The gas has an in
Anestetic [448]

Given:

Work done, W = 5 J

Initial energy = 8J

Final energy = 30J

Let's determine if the work done have a positive or nrgative value.

Appy the equation for the first lae of thermodynamics:

\Delta U=Q-W

Where:

U is the change in internal energy

Q is the added heat

W is the work done

To find the work done here, we have:

Rewrite the formula for W

W=Q-\Delta U

Where:

ΔU = 30J - 8J = 22J

Q = 5J

Thus, we have:

\begin{gathered} W=5J-22J \\  \\ W=-17J \end{gathered}

Therefore, the work done here is -17J.

This means the work done in this scenario has a negative value.

ANSWER:

The work done in this scenario has a negative value

3 0
2 years ago
A sphere of metal has a mass of 1431 g and a diameter of 5.80 cm. What is the density of metal in g/cm3
Dmitriy789 [7]

Answer:

see below

Explanation:

You will need t find the volume of the sphere

 4/3 pi r^3    divide into the mass

1431 / (4/3 pi (5.8)^3) = 14 gm /cm^3

4 0
3 years ago
A bus is moving at 20 m/s. The bus starts to break, and finally reaches a speed of 0 m/s. The bus took 5 seconds to stop. What i
olya-2409 [2.1K]
A = V - Vo / T

A = 0 - 20 / 5

A = -4 m/s^2
7 0
3 years ago
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