Answer:
D th
Explanation:
D B. The force applied to the ball is a balanced force.
Counter clockwise torque is 360Nm.
Clockwise torque is 240Nm.
40 * 9 = 360
80 * 3 = 240
Answer:
(1) Resonance
Explanation:
Resonance is the process whereby a system is set into vibration due to the vibration of a nearby system with larger amplitude. The frequency at which this vibration takes place is called the resonant frequency.
It is a phenomenon of amplification that occurs when the frequency of a periodically applied force is in harmonic proportion to the natural frequency of the system on which it acts.
