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3 years ago

Select the correct answer.

Physics

1 answer:

Simora [160]3 years ago

7 0

Answer:

A. 2.36 Newtons

Explanation:

F = GmM/d²

F = 6.673 x 10⁻¹¹(1)(5.98 x 10²⁴) / (1.3 x 10⁷)²

F = 2.36121...

Very poor question design.

mass of box... 1 significant digit

distance... 2 significant digits

mass of earth... 3 significant digits

value of G... 4 significant digits

Answer precision to 3 significant digits is not justifiable

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In a choir practice room, two parallel walls are 5.70 m apart. The singers stand against the north wall. The organist faces the

ololo11 [35]

Answer:

4.98 m

Explanation:

Given that

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Distance between the singer and the organist, S = 5.7 + 0.78 = 6.48 m

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Using the simple relationship

D/S = d/s, on rearranging

D = dS /s

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D = 3.888 / 0.78

D = 4.98 m

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3 years ago

"My distance to the center of the earth is about 4000 miles when I am on the surface. If I go to a height of 8000 miles above th

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Given,

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$F=\frac{G\times M\times m}{r^2}$

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i.e.