Answer:
a. decrease by a factor of 3.
Explanation:
The intensity of light is inversely proportional to the square of distance.
I ∝1/d^2
or
I= k/d^2
where k is a constant
so, if d becomes 2d , I will be come I/4
Therefore, intensity will a. decrease by a factor of 3.
Answer:
The amplitude of the sound wave will increase.
Explanation:
Answer:
Electrical energy spontaneously
Explanation:
Answer:
170 kg m/s
Explanation:
Impulse = change in momentum
J = m Δv
J = (5 kg) (25 m/s − (-9 m/s))
J = 170 kg m/s
