Answer:
88.8 m/s= Speed of wave propagation in the required mode.(3 loops)
Explanation:
When there are 3 loops.
the total length = L = 3 λ /2
⇒ λ = 2 L / 3 = 2 ( 1.11 ) / 3 = 0.74 m
Velocity = v = f λ = (120)(0.74) = 88.8 m/s
Do you want me to translate it?
Answer:
0
Explanation:
According to Newton's second law, the net force is equal to the mass times the acceleration. Since the car is not accelerating, the net force is 0.
