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vampirchik [111]
3 years ago
12

8. A satellite of mass m, revolving in a circular orbit of radius around the earth of mass M, has a total energy E. Then t angul

ar momentum will be (a) 2Ems2 (c) (2Em32 essed te the p on ah 9. A mass M is split into two parts m and (M-m), which ae (d) (2Emsd
Geography
1 answer:
Aleks [24]3 years ago
5 0

Answer:

werrrrrrrrrrrrrrrrrrrrrrr

Explanation:

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Find the perimeter of the polygon with the vertices UC - 2, 4), V(3, 4), and W(3. – 4).
sesenic [268]

<em>Answer:</em>

<em>Find the perimeter of the polygon with the vertices UC - 2, 4), V(3, 4), and W(3. – 4).</em>

<em>Explanation:</em>

<em>this is a right triangle, where one angle is 90 degrees. Two sides are perpendicular to each other. </em>

<em> </em>

<em> </em>

<em> </em>

<em>U to V have the same y values so the distance is the difference in x values or 3 - (-2) = 5 </em>

<em> </em>

<em>V to W have the same x values, so the distance is the difference in y values or 4-(-4) = 8 </em>

<em> </em>

<em>U to W is the hypotenuse of the right triangle, = sqr(sum of squares of the other 2 sides) = sqr(25+64)=sqr(89) </em>

<em> </em>

<em> </em>

<em> </em>

<em>Perimeter = sum of the 3 sides = 5 + 8 + sqr(89) = 13 + sqr89 = 13 + 9.44 = 22.44 </em>

<em> </em>

<em>81 is 9 squared.  100 is 10 squared.  91 is about 9.5 squared.  Rounded to 2 decimal places, it's 9.44 </em>

<em> </em>

<em> </em>

<em> </em>

<em>It might help if you plot the 3 points on a graph. That makes it clear you're dealing with a right triangle. </em>

<em> </em>

<em> </em>

<em> </em>

<em>Or if you want, you could have used the distance formula on all 3 sides, but it simplifies to the above. </em>

<em> </em>

<em />

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How toads lay their eggs differently than frogs
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4 0
2 years ago
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What evidence tells scientists that earth's core is solid?
AleksAgata [21]
Seismic waves traveling through the earth<span> refract for the same reason that light refracts when entering different substances (e.g. air, water). The inner </span>core<span>has a different density from the outer </span>core<span>, and this difference in density </span>tells<span> us that it is </span>solid<span>.

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Why did trade along the Silk Road increase after it fell under Mongol control?
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Answer:

C

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