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nevsk [136]
2 years ago
7

How far from the surface of Earth is the magnitude of Earth's gravitational field equal to 7.86 N/kg?

Physics
1 answer:
AfilCa [17]2 years ago
4 0

Answer:

7.48 x 10⁵ m

Explanation:

g = 7.86 N/kg

M = 5.97 x 10²⁴ kg, R = 6.37 x 10⁶ m.

Find height h

g = GM/(R + h)²

(R + h)² = GM/g = 6.67 x 10⁺¹¹ x 5.97 x 10²⁴ /7.86 = 5.066 x 10¹³

R + h = 7.12 x 10⁶ m

so

h =  7.12 x 10⁶ - 6.37 x 10⁶ = 7.48 x 10⁵ m

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3 years ago
What is the mass of a falling rock if it produces a force of 50 N?
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8 0
3 years ago
What would happen if water could not condense in the atmosphere
Harrizon [31]
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-- The water would stay there in the atmosphere.  There would never be
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-- Rivers flow out of lakes and ponds, carrying lake water to the sea. 
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-- At the instant when the atmosphere became full of all the water vapor
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. . . . . When you washed the dishes, you could leave them standing in the
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. . . . . You could hang up your bath towel and the laundry in your room or
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atmosphere stopped, then evaporation would stop, and it would only be
a matter of time before life on Earth stopped. 
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