1. If a mass-spring system has a mass of 1.29 kg, a spring constant of 43 N/m, and a driving frequency of 100 Hz, what w

[answerhappygod]

1. If a mass-spring system has a mass of 1.29 kg, a spring
constant of 43 N/m, and a driving frequency
of 100 Hz, what will be its mass reactance? or the same system
in the previous problem, what will be its stiffness reactance?
2. Imagine a mass-spring system with no friction or
other forms of resistance. If it has a mass of 400 g,
a spring constant of 7.93 N/m, and it is driven at 50 Hz, what will
be the system’s impedance? For the mass-spring system in the
previous problem, if the system is driven at the same frequency
as
its natural frequency of vibration, what will be the value of the
impedance?
3. If a wave has a Full-Wave rectified amplitude of 1.45 m,
what is its peak amplitude? NOTE: Please
calculate your answer in cm, *not* in mm
4. If the 25 cm long pendulum in the previous problem were
transported to the moon’s surface where
lunar gravity is one-sixth that of earth’s gravity, what would be
its new period of vibration?
5. Sound travels a lot faster in water than in air. If
someone holds a tuning fork which has a note of
concert A (440 Hz) and stands next to a pool, explain what will
happen to the frequency and/or the
wavelength as the sound travels through the air and enters into the
water in the pool. [Write out your
answer in a few sentences]