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larisa86 [58]
3 years ago
8

A satellite is held in orbit by a 2000- N gravitational

Physics
1 answer:
KengaRu [80]3 years ago
4 0

Answer:

The work done by gravity is zero.

Explanation:

Given that,

Gravitational force = 2000 N

Circumference = 80000 km

We need to calculate the work done by gravity

Using formula of work done

W=F\cdot d\cos\theta

Here, \cos\theta = 0

Because, for a circular motion is always perpendicular to the force.

Where, F = force

d = distance

Put the value into the formula

W=2000\times80000\times0

W=0

Hence, The work done by gravity is zero.

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Answer:

41.4* 10^4 N.m^2/C

Explanation:

given:

E= 4.6 * 10^4 N/C

electric field is 4.6 * 10^4 N/C and square sheet is perpendicular to electric field so, area of vector is parallel to electric field

then electric flux = ∫ E*n dA

                            = ∫ 4.6 * 10^4 * 3*3

                            = 41.4* 10^4 N.m^2/C

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3 years ago
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A meter stick is balanced at the 50 cm mark. You tie a 20 N weight at the 20 cm mark. Where should a 30 N weight be placed so th
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Answer:

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<h3>How climate change could impact the formation of hurricanes?</h3>

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