3 years ago

The force that keeps two surfaces at rest from sliding over each other is

1 answer:

8 0

Friction is the correct answer.

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Dmitriy789 [7]

Electromagnetic waves

4 0

2 years ago

DENIUS [597]

Answer:

See the explanation below

Explanation:

We must perform a sum of forces on the body, that sum of forces is equal to zero. That is, the body is in balance and does not move.

ΣF = 0

3 - 3 = 0

This force is negative and acts by pointing downwards.

4 0

3 years ago

m_a_m_a [10]

Answer:

$F=2.25\times 10^{-5}\ N$

Explanation:

According to question,

Charge 1 and charge 2 are $10^{-7}\ C$

The distance between charges is 2 m

We need to find the force with which two positive charges repel. It is called electrostatic force of repulsion. It can be given by :

$F=\dfrac{kq^2}{r^2}\\\\F=\dfrac{9\times 10^9\times (10^{-7})^2}{2^2}\\\\F=2.25\times 10^{-5}\ N$

So, the electric force of repulsion is $2.25\times 10^{-5}\ N$ .

8 0

3 years ago

Marina86 [1]

A. Flood.
Hope it helps!

6 0

3 years ago

Step2247 [10]

Luster I think is what you are looking for

6 0

3 years ago