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zvonat [6]
2 years ago
7

Both the Moon and the Sun influence the tides on Earth. The moon has a much greater influence though. Why is that? A) because th

e Sun is much less dense B) because the Sun is gaseous, not solid C) because the Sun is so far away from Earth D) because the Sun is less massive than the Moon
Physics
2 answers:
uysha [10]2 years ago
8 0
Because the sun is much farther from Earth than the moon
Temka [501]2 years ago
3 0
C. The sun is 400 times farther from Earth than the moon is.
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A rope of total mass m hnd length L is suspended vertically with an object of mass M suspended from the lower end. Find an expre
pantera1 [17]

Answer:

Part a)

v = \sqrt{xg + \frac{MLg}{m}}

Part b)

t = 12 s

Explanation:

Part a)

Tension in the rope at a distance x from the lower end is given as

T = \frac{m}{L}xg + Mg

so the speed of the wave at that position is given as

v = \sqrt{\frac{T}{\mu}}

here we know that

\mu = \frac{m}{L}

now we have

v = \sqrt{\frac{ \frac{m}{L}xg + Mg}{m/L}

v = \sqrt{xg + \frac{MLg}{m}}

Part b)

time taken by the wave to reach the top is given as

t = \int \frac{dx}{\sqrt{xg + \frac{MLg}{m}}}

t = \frac{1}{g}(2\sqrt{xg + \frac{MLg}{m}})

t = \frac{2}{9.8}(\sqrt{(39.2\times 9.8) + \frac{8(39.2)(9.8)}{1}})

t = 12 s

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Explanation:

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P = h d g

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If we talk about teh atmospheric pressure, the density of air goes on decreasing as we go up and up. o we cannot say that it is directly depends only on the depth of air, it also depends on the changing density of air.

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