As we know that in transformers we have

here we know that



now from above equation we will have



Answer:
Energy. They need energy.
Explanation:
Answer:
Coefficient of friction = 0.5
Explanation:
Given:
Mass of box = 5 kg
Force applied = 20 N
Acceleration = 2 m/s²
Find:
Coefficient of friction
Computation:
Friction force = Mass x Acceleration.
Friction force = 5 x 2
Friction force = 10 N
Coefficient of friction = Friction force / Force applied
Coefficient of friction = 10 / 20
Coefficient of friction = 0.5
It's 60.... i have used the formula
L=r^2mw
and didn't use the value 0.75...