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Lemur [1.5K]
4 years ago
9

Find the magnitude of the gravitational force a 68.4 kg person would experience while standing on the surface of earth with a ma

ss of 5.98 à 1024 kg and a radius of 6.37 à 106 m. the universal gravitational constant is 6.673 à 10â11 n · m2 /kg2 . answer in units of n.
Physics
1 answer:
luda_lava [24]4 years ago
6 0
Given: Mass of a person M = 68.4 Kg.

           Mass of earth Me = 5.98 x 10²⁴ Kg

           Radius of earth r = 6.37 x 10⁶ m

           G = 6.67 x 10⁻¹¹ N.m²/Kg²

Required: F = ?

Formula: F = GMeM/r²

               F = (6.67 x 10⁻¹¹ N.m²/Kg²)(5.98 x 10²⁴)(68.4 Kg)/(6.37 x 10⁶ m)²

               F = 672.41 N




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1. The current in a wire is 0.72A. Calculate the charge that passes through the wire in; a. 4 s b. 60 s c. 180 s d. 7 s e. 0.5 s
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Let current be I, charge be Q and time be t.
Here we are provided with,
I = 0.72A
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Case I
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When, t = 4s
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Case II
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When, t = 60s
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Case III
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When, t = 180s
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Case IV
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When, t = 7s
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Case V
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When, t = 0.5s
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The displacement instead is given by the difference between the final point (1.0 m in front of the starting line) and the starting point (the starting line, 0 m):

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