VA piano string of mass per unit length 5.00 × 10-3 kg/m is under a tension of 1 350 N. Find the speed with which a wave travels on this string.
VA piano string of mass per unit length 5.00 × 10-3 kg/m is under a tension of 1 350 N. Find the speed with which a wave travels on this string.
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Transcribed Image Text:the wavelengths of these two different A-notes.
the mass per uni
48. Ocean waves are traveling to the east at 4.0 m/s with a distance of
20.0 m between crests. With what frequency do the waves hit the
front of a boat (a) when the boat is at anchor and (b) when the
string? (b) What i
when the suspene
2.00 kg?
58. The elastic limit c
boat is moving westward at 1.0 m/s?
is the maximum
propagate along
(The density of s
59. QIC A 2.65-kg
a length of 38.0
is the speed of
ad the tension in t
ad worker on the g
13.9 The Speed of Waves on Strings
49. V An ethernet cable is 4.00 m long and has a mass of 0.200 kg
A transverse wave pulse is produced by plucking one end of
the taut cable. The pulse makes four trips down and back
along the cable in 0.800 s. What is the tension in the cable?
50. Workers attach a 25.0-kg mass to one end of a 20.0-m long
cable and secure the other end to the top of a stationary
60. SA taut clotk
pulse is produ
If the pulse n
crane, suspending the mass in midair. If the cable has a mass
of 12.0 kg, determine the speed of transverse waves at (a) the
middle and (b) the bottom end of the cable. (Hint: Don't
neglect the cable's mass. Because of i
from a minimum value at the bottom of the cable to a maxi-
t seconds, find
terms of n, L,
the tension increases
in terms of th
mum value at the top.)
13.10 Interfere
51. VA piano string of mass per unit length 5.00 × 10-3 kg/m is
under a tension of 1 350 N. Find the speed with which a wave
travels on this string.
13.11 Reflecti
61. A wave of am
52. QIC S A student taking a quiz finds on a reference sheet
the two equations
amplitude 0.
(a) the large
can occur, a
1
and
v =
minima arise
She has forgotten what Trepresents in each equation. (a) Use
dimensional analysis to determine the units required for Tin
each equation. (b) Explain how you can identify the physical
quantity each Trepresents from the units.
53. Transverse waves with a speed of 50.0 m/s are to be produced
on a stretched string. A 5.00-m length of string with a total
mass of 0.060 0 kg is used. (a) What is the required tension
in the string? (b) Calculate the wave speed in the string if the
tension is 8.00 N.
Additional Pr
62. The positic
described E
Find (a) th
(c) the pos
speed at t
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