A vibrating string 45.0 cm long is under a tension of 1.03 N . The results from

Question

A vibrating string 45.0 cm long is under a tension of 1.03 N . The results from five successive stroboscopic pictures are shown in the figure. The strobe rate is set at 5000 flashes per minute, and observations reveal that the maximum displacement occured at flashes 1 and 5 with no other maxima in between.

a) Find the period for the traveling waves on this string.

T = _______________ s

b) Find the frequency for the traveling waves on this string.

f = _________________ Hz

c) Find the wavelength for the traveling waves on this string.

d) In what harmonic is the string vibrating?

n = ______________________

e) What is the speed of the traveling waves on the string?

v = __________________ m/s

f) How fast is point P moing when the string is in position 1?

v = ____________________ m/s

Explanation / Answer

a) time taken for on flash = t/N = 60/5000 = 0.012 s

time period = time taken for 1ashes = 0.012*10 = 0.12 s

b) f = 1/T = 1/0.12 = 8.33 hz

c)wavelength = L = 0.45m

d) V = wavelength /T = 0.45/0.12 = 3.75 m/s

e) V = 0

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.