A wave pulse travels down a slinky. The mass of the slinky is m = 0.89 kg and is initially stretched to a length L = 7.1 m. The wave pulse has an amplitude of A = 0.2 m and takes t= 0.426 s to travel down the stretched length of the slinky. The frequency of the wave pulse is f = 0.48 Hz. 1" What is the speed of the wave pulse? m/s Submit 2) What is the tension in the slinky? N Submit 3) What is the average speed of a piece of the slinky as a complete wave pulse passes?

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13:35 O A O P
A 1 99%
A wave pulse travels down a slinky. The mass of the slinky is m = 0.89 kg
and is initially stretched to a length L = 7.1 m. The wave pulse has an
amplitude of A = 0.2 m and takes t = 0.426 s to travel down the stretched
length of the slinky. The frequency of the wave pulse is f = 0.48 Hz.
1) What is the speed of the wave pulse?
m/s Submit
2) What is the tension in the slinky?
N Submit
3) What is the average speed of a piece of the slinky as a complete wave
pulse passes?
m/s Subrmit
4) What is the wavelength of the wave pulse?
m Submit
a 5) Now the slinky is stretched to twice its length (but the total mass does
not change).
What is the new tension in the slinky? (assume the slinky acts as a
spring that obeys Hooke's Law)
N Submit
6) What is the new mass density of the slinky?
kg/m Subrmit
" What is the new time it takes for a wave pulse to travel down the
slinky?
s Submit
O 8) If the new wave pulse has the same frequency, what is the new
wavelength?
m Submit
What does the energy of the wave pulse depend on?
O the frequency
O the amplitude
O both the frequency and the amplitude
Submit
(Survey Question)
10) Below is some space to write notes on this problem
Submir
Transcribed Image Text:13:35 O A O P A 1 99% A wave pulse travels down a slinky. The mass of the slinky is m = 0.89 kg and is initially stretched to a length L = 7.1 m. The wave pulse has an amplitude of A = 0.2 m and takes t = 0.426 s to travel down the stretched length of the slinky. The frequency of the wave pulse is f = 0.48 Hz. 1) What is the speed of the wave pulse? m/s Submit 2) What is the tension in the slinky? N Submit 3) What is the average speed of a piece of the slinky as a complete wave pulse passes? m/s Subrmit 4) What is the wavelength of the wave pulse? m Submit a 5) Now the slinky is stretched to twice its length (but the total mass does not change). What is the new tension in the slinky? (assume the slinky acts as a spring that obeys Hooke's Law) N Submit 6) What is the new mass density of the slinky? kg/m Subrmit " What is the new time it takes for a wave pulse to travel down the slinky? s Submit O 8) If the new wave pulse has the same frequency, what is the new wavelength? m Submit What does the energy of the wave pulse depend on? O the frequency O the amplitude O both the frequency and the amplitude Submit (Survey Question) 10) Below is some space to write notes on this problem Submir
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