1)When middle C on a piano (frequency 100 Hz) is struck, it loses half its energy after 2.0 s. a)What is the decay time t? b)What is the Q factor for this piano wire?
1)When middle C on a piano (frequency 100 Hz) is struck, it loses half its energy after 2.0 s.
a)What is the decay time t?
b)What is the Q factor for this piano wire?
2)The sprung mass of an automobile is the mass that is supported by the springs. (It does not include the mass of the wheels, axles, brakes, and so on.) Apassenger car has a sprung mass of 800 kg and an unsprung mass of 150 kg. If the four shock absorbers are removed, the car bounces up and down on its springs with a frequency of 1.2 Hz. What is the damping constant provided by the four shocks if the car, with shocks, is to return to equilibrium as quickly as possible without passing it after hitting a speed bump?
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