The net force on him when the elevator is accelerating up is 45N up. That's what accelerates HIM up.
Answer:
f - f '= 6.18*10^11 Hz
Explanation:
The change in frequency is given by:
f': observed frequency
f: source frequency = 6.17*10^14 Hz
v: speed of the source = 3.01*10^55 m/s
c: speed of light = 3*10^8 m/s
By replacing all these values you obtain:
hence, the change in frequency f-f' will be:
f - f '= 6.18*10^11 Hz
Salt is a compound Its a compound
Explanation:
Given that,
The force between two charges,
New force becomes,
We see that, the new force is 2 times more than the initial force.
The force is directly proportional to the product of forces and inversely to the square of the distance between charges.
It means, one of the charges gets doubled and it results in the doubling of force.