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irakobra [83]
3 years ago
15

A satellite orbits earth at 800 m from the earth's center. Gravity at this location is 6.2 m/s^2. What is the velocity of the sa

tellite
Physics
1 answer:
oksano4ka [1.4K]3 years ago
6 0

Recall that the magnitude of the acceleration a of a particle moving with speed v in a circular path around a point at a distance R away from the particle is given by

a=\dfrac{v^2}R

So, the satellite has velocity

6.2\,\dfrac{\rm m}{\mathrm s^2}=\dfrac{v^2}{800\,\rm m}\implies v=70.4\,\dfrac{\rm m}{\rm s}

pointing in the direction tangent to the circular path.

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Answer: D

If the fog disappears when the Sun comes out, then this is an example of condensation because:

the Sun actually dries up the fog, and it makes it into higher clouds.

Hope this helps you!

3 0
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The internal energy of material is determined by
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The data indicate the populations of mammals in the Florida Everglades in different years over the past two decades. The Burmese
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Answer:

C) Burmese pythons lack natural predators and can utilize a wide variety of food sources in the Everglades.

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8 0
3 years ago
The half-life of caffeine is 5 hours. If you ingested a 30 oz Big Gulp, how many oz of caffeine is left after one half life? * Y
xeze [42]

Answer:

The amount of caffeine left after one half life of 5 hours is 15 oz.

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So that:

After one half life of 5 hours, the value of caffeine that would be left is;

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The amount of caffeine left after one half life of 5 hours is 15 oz.

8 0
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A child stands on the edge of a merry-go-round of radius 1.63 m which is rotating at 2.13 rad/s.
Brilliant_brown [7]

Answer:

9

Explanation:

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It makes 9 complete revolutoins

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