V=f*wavelength
30m/s=f*(0.35m)
f=85.7 Hz
Newton's 2nd law of motion:
Force = (mass) x (acceleration)
29 N = (5 kg) x (acceleration)
Divide each side
by 5 kg : 29N / 5kg = acceleration
5.8 m/s² = acceleration
If you were moving a magnet in and out of coil wire you would generate a voltage
Answer:
It decreases by a factor of 4
Explanation:
The gravitational force between two masses is given by
where
G is the gravitational constant
m1, m2 are the two masses
r is the separation between the two masses
In this problem, the distance between the masses is doubled, so
r' = 2r
Substituting into the equation, we see that the new force is
So, the force decreases by a factor of 4.