That would be c. :) :) :)
Impulse = Force x Time
By substituting, Impulse = 53 x 12 = 636 N . sec
Answer:
Explanation:
we have two concentric cylinders, by using the Gauss' law we have
where λ is the cahrge per unit of length in both cylinders, r is a point between the cylinders
I hope this is useful
regards
Answer:
Explanation:
From the question we are told that
The electric filed is
Generally according to Gauss law
=>
Given that the electric field is pointing downward , the equation become
Here is the excess charge on the surface of the earth
is the surface area of the of the earth which is mathematically represented as
Where r is the radius of the earth which has a value
substituting values
So
Here s the permitivity of free space with value
substituting values