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-BARSIC- [3]
3 years ago
12

Clouds in our atmosphere cause us to see the different phases of the moon.

Physics
2 answers:
krok68 [10]3 years ago
8 0

Answer:

False

Explanation:

:)

Alina [70]3 years ago
4 0

Answer:

The answer is false

Explanation:

The clouds have nothing to do with the changes in the phases of the moon but, rather the postioning of the sun and the moon regarding revolution and the spinning of the earth on it axis.

I hope this helps you good luck and have a good day.

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Which statement describes the energy involved in diffusion?
artcher [175]

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Diffusion requires energy only to move material through the cell membrane.

Explanation:

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Calculate the heat energy needed to change the temperature of 2 kg of copper from 10°C to 110°C.
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the two forces f1 and f2 acting at A have a resultant force of Fr= -100lb. determine the magnitude and coordinate direction angl
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3 years ago
Why is the motion of an athlete moving along the circular path with Constant speed considered to be an accelerated motion?
Strike441 [17]

The speed is changing its direction all the time. There is an acceleration which changes the direction of the speed – that is called centripetal acceleration. Only uniform linear motions are considered to have no acceleration.

This is the general formula for acceleration

a = dv/dt

When calculating dv, you should keep in mind the change in the velocity vector’s direction. You can easily see in a graph that with dt tending to 0 (so the length of the arc covered is also tending to 0), the difference between vectors Vf and V0 has a direction which is perpendicular to velocity (the shorter the arc, the closest the angle is to 90 degrees).

There is a formula (which can be deducted from the previous formula) which allows you to calculate the acceleration:

a = v^2/r

Let’s talk about the units:

v is in m/s

r is in m

so v^2/r

is in (m/s)^2/m = (m^2/s^2)/m = m/s^2

which is the same unit as dv/dt:

dv/dt = (m/s)/s= m/s^2

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What radiation do remote controls use?
dalvyx [7]

Answer:

infra red radiation is used

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3 years ago
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