1110. A tuba player plays the note E and sustains the sound for some time. For a pure E
the variation in pressure from normal air pressure is given by $V(t) = 0.2 \sin 80 \pi t$
Where V is measured in pounds per square inch and t is measured in seconds.
a) Find amplitude, period, and frequency.
b) If the tuba player increases the loudness of the note, how does the equation for
V change?
c) If the player is playing the note incorrectly and it is a little flat, how does the
equation change for V change?
