If the tension on a guitar string is increased by a factor of 2, the fundamental frequency at which it vibrates is changed by what factor?

a. 0.5
c. 2–1/2
b. 21/2
d. 2


B

Physics & Space Science

You might also like to view...

Two traveling waves have the forms z1 = A sin(kx - ?t), z2 = A sin(kx + ?t ) Express their superposition in the form of a standing wave

A) 2A cos(kx) cos( ?t ) B) 2A sin(kx) cos( ?t ) C) 2A sin(kx) sin( ?t ) D) A sin[(kx )2 - (?t )2] E) 2A cos(kx) sin( ?t )

Physics & Space Science

A baseball catcher puts on an exhibition by catching a 0.175-kg ball dropped from a helicopter at a height of 89.0 m. What is the speed of the ball just before it hits the catcher's glove 1.00 m above the ground? (g = 9.80 m/s2 and ignore air resistance)

a. 41.5 m/s b. 0.482 m/s c. 1 730 m/s d. 29.4 m/s e. 42.0 m/s

Physics & Space Science

A stretched string is observed to vibrate in three equal segments when driven by a 480 Hz oscillator. What is the fundamental frequency of vibration for this string?

a. 480 Hz b. 320 Hz c. 160 Hz d. 640 Hz e. 240 Hz

Physics & Space Science

The inside surface of a 1-m-long vertical 5-cm-ID tube is maintained at 120°C. For saturated steam at 350 kPa condensing inside, estimate the average heat transfer coefficient and the condensation rate, assuming the steam velocity is small.

GIVEN
? Steam condensing inside a vertical tube
? Tube length (L) = 1 m
? Tube inside diameter (D) = 5 cm = 0.05 m
? Tube surface temperature (Ts) = 120°C
? Steam pressure (p) = 350 kPa
FIND
? The average heat transfer coefficient (hc)
ASSUMPTIONS
? Steady state
? The steam velocity is small
? Film condensation occurs
SKETCH

PROPERTIES AND CONSTANTS
From Appendix 2, Table 13, for saturated water at 350 kPa


Physics & Space Science