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3 years ago

8

If you were an Astronaut in the middle of the near side of the moon during a full moon, how would the ground around you look? Ho

w would the earth high in the sky look? Describe what is in sunlight and what is in darkness

1 answer:

Alenkasestr [34]3 years ago

6 0

Dark light a round ball and stuff

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Which objects would be considered to be in free fall?

SVEN [57.7K]

Answer:

Any object that is being acted upon only by the force of gravity is said to be in a state of free fall.

Explanation:

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3 years ago

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Examples were friction is not useful

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The old electricity meters with disk using sapphire bearings for friction to be minimal to not aggravate metering

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3 years ago

Which property allows objects that do not produce their own light

KatRina [158]

Answer:

Reflection

Explanation:

As light is scattered on items which do not generate illumination, they reflect it. This is attributed to the fact that light reflects off of themselves. The moon, for example, absorbs sunlight such that it can be seen at night.

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3 years ago

PLZ HELP!! List properties of ions.

Andreas93 [3]

Ionic compounds typically have high melting and boiling points, and are hard and brittle. when melted or dissolved they become highly conductive, because the ions are mobilized.

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3 years ago

Runaway truck ramps are common on mountainous highways in case the brakes fail on large trucks. If a

dusya [7]

Answer:

$W=-21,870,000\ J$

Explanation:

<u>Work and Kinetic Energy </u>

The work an object does due to its motion is equal to the change of its kinetic energy. Being ko and k1 the initial and final kinetic energy respectively and m the mass of the object, then

$W=\Delta k=k_1-k_0$

Since

$\displaystyle k=\frac{mv^2}{2}$

We have

$\displaystyle W=\frac{mv_1^2}{2}-\frac{mv_0^2}{2}$

The truck has a mass of 60,000 kg and is moving at 27 m/s. The runaway truck ramp must stop the truck, so the final speed is 0. Thus

$\displaystyle W=\frac{(60,000)0^2}{2}-\frac{(60,000)(27)^2}{2}$

$W=0-21870000\ J$

$\boxed{W=-21,870,000\ J}$

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3 years ago