Answer:

Explanation:
From the question we are told that
Initial speed
Final speed 
Generally the Newtons equation of motion is mathematically represented by

with
Therefore

Therefore




Answer:
Mechanical energy into electrical energy
Explanation:
Answer:
the time period is 22.63 years
Explanation:
The computation of the number of years taken is as follows:
According to the Keplers law

Here T denotes the time period
And, R denotes the average distance among the sun and planet
Now let us assume for earth
R_1 & T_1 be 1 year
So, for Planet

Now applied Keplers law

So, the time period is 22.63 years
Answer:
7] Force = mass × acceleration
Force = 2 × 5
<u>Force = 10 N</u>
<u></u>
8] Velocity = acceleration due to gravity × time taken
Velocity = 9.8 × 12
<u>Velocity = 117.6 m/s</u>