Intensity of Sound: The sound intensity level 5.0 m from a point source is 95 dB. At what distance will it be 75 dB?
A. 25 m
B. 50 m
C. 75 m
D. 225 m
Answer: B
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A force of 15.0 N is applied to a wire with a diameter of 2.00 mm. If the wire changed length by 1.20 mm, then the stress in the wire is
a. 
b. 
c. 
d. 
e. 
A mass on a spring vibrates in simple harmonic motion at a frequency of 4.0 Hz and an amplitude of 8.0 cm. If a timer is started when its displacement from equilibrium is a maximum (hence x = 8 cm when t = 0), what is the displacement of the mass when t = 3.7 s?
a. zero b. 0.025 m c. 0.049 m d. 0.080 m
Plot the Bessel’s Function of the second kind of zero and first order, Y0 and Y1 for arguments from 0 to 10.
What will be an ideal response?
The deepest depression found on the surface of Mars is the:
A) Mariannas Trench. B) Caloris basin. C) Valles Marineris rift. D) Hellas Basin of Mars. E) Mare Crisium.