B. third
for every action there is a reaction*

Hi Pupil Here's Your answer ::
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No, on a circle in going from one point around circular path the displacement is zero but the distance covered is equal to the circumference of the circle.
i.e.

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Hope this helps . . . . . . .
Answer:

Explanation:
In order to find the force between the two electrons, we need to use Coulomb's law. In its scalar form, the law is given by:

Where:

The electric charge of an electron is a known constant given by:

So:

Therefore, replacing the data provided in the Coulomb's law equation:

Answer:
The acceleration is -9.8 m/s²
Explanation:
Hi there!!
When you throw a ball upward, there is a downward acceleration that makes the ball return to your hand. This acceleration is produced by gravity.
The average acceleration is calculated as the variation of the speed over time. In this case, we know the time and the initial and final speed. Then:
acceleration = final speed - initial speed/ elapsed time
acceleration = -4.3 m/s - 4.3 m/s / 0.88 s
acceleration = -9.8 m/s²
Answer:
<em><u>60 m/s</u></em>
Explanation:
Average Speed = Distance/ Time
= 15/0.25 = 60m/s