Answer:
The value is
Explanation:
From the question we are told that
The maximized electric field strength is
The diameter is
Generally the cross -sectional area is mathematically represented as
=>
=>
=>
Generally the maximum power is mathematically represented as
Here c is the speed of light with value
is the permeability of free space with value
=>
Answer:
Work done, W = 6153.31 Joules
Explanation:
It is given that,
Weight of piano, W = F = 7382 N
It is pushed 2.16 meters friction less plank
The angle with horizontal,
When the piano slide up plank at a slow constant rate. The y component of force is taken into consideration. The net force acting on it is given by :
Work done is given by :
W = 6153.31 Joules
So, the work done in sliding the piano up the plank is 6153.31 Joules. Hence, this is the required solution.