3 years ago

"Rubble pile" asteroids have low average densities due to being up to 50% empty space inside.

Physics

1 answer:

andrew-mc [135]3 years ago

4 0

True
They have a low density.

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A small sphere has a harge of 9uC and other small sphere has a charge of 4uC.

Helga [31]

Answer:

Electrical force, F = 90 N

Explanation:

It is given that,

Charge on sphere 1, $q_1=9\ \mu C=9\times 10^{-6}\ C$

Charge on sphere 2, $q_1=4\ \mu C=4\times 10^{-6}\ C$

Distance between two spheres, d = 6 cm = 0.06 m

Let F is the electrical force between them. It is given by the formula of electric force which is directly proportional to the product of charges and inversely proportional to the square of distance between them such that,

$F=k\dfrac{q_1q_2}{d^2}$

$F=9\times 10^9\times \dfrac{9\times 10^{-6}\times 4\times 10^{-6}}{(0.06)^2}$

F = 90 N

So, the electrical force between them is 90 N. Hence, this is the required solution.

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3 years ago

a parallel circuit is sometimes called a because the current splits up among all the resistors in the parallel circuit

Ahat [919]

A parallel circuit is sometimes called a current divider because current splits up among all the resistors in the parallel circuit. In addition, the current through the branches is inversely proportional to the resistance of the branch. If the resistance in each branch is kept constant but the voltage is decreased, the current will decrease.

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3 years ago

When waves enter a denser medium, they bend the normal.<br><br> A) Toward<br> B) Away From

Andreyy89

The answer is bend towards normal.

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3 years ago

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Một chất điểm chuyển động trong mặt phẳng Oxy với phương trình :<br> { = 2 + 10

In-s [12.5K]

Answer:

plz write your questions in English