Answer:

Explanation:
According to coulombs law force between two charges is given by
here R is the distance between both the charges which is given as 25 cm
We have given force F =0.036 N
So
As
is constant which value is 


Answer:
power requirement is 23.52 ×
W
Explanation:
given data
flow rate q = 2 m³/s
elevation h = 1200 m
density of the water ρ = 1000 kg/m³
to find out
power requirement
solution
we will get power by the power equation that is
power = ρ× Q× g× h ...................1
put here all value we get power
power = ρ× Q× g× h
power = 1000 × 2 × 9.8 × 1200
power = 23.52 ×
so power requirement is 23.52 ×
W
Answer:
The tension in the strap is 74.82 N.
Explanation:
Given that,
Angle between the horizontal and the suitcase is 36 degrees.
The distance traveled by the suitcase is 15 meters.
Let the work done by the suitcase is 908 J. We know that the work done in the vector form is given by :

So, the tension in the strap is 74.82 N. Hence, this is the required solution.
There are not enough electrons in atoms to affect the total mass, so the total mass is just the weight of the protons and neutrons.