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Author Question: The figure below represents a string which has a heavy section and a light section. The mass per ... (Read 189 times)

go.lag

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on: Jul 28, 2018
The figure below represents a string which has a heavy section and a light section. The mass per unit length of the heavy section is 16 times as large as the mass per unit length of the light section. When the string is under tension, the speed of a pulse traveling in the heavy section is ____ times the speed of that same pulse traveling in the light section.
 a.
  b.
  c.
  d. 2
  e. 4

Question 2

Ariel claims that a pulse is described by the equation where x and y are measured in cm and t in s. Miranda says that it is not possible to represent a pulse with this function because a wave must be a function of x + vt or x  vt. Which one, if either, is correct, and why?
 a. Ariel, because x2  6.0xt + 9t2 = (x  3.0t)2.
  b. Ariel, because a pulse is not an infinite wave.
  c. Miranda, because (x  3.0t)2 is the same as (3.0t  x)2.
  d. Miranda, because a pulse is not an infinite wave.
  e. Miranda, because is infinite when x = 0.
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anoriega3

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Reply #1 on: Jul 28, 2018
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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go.lag

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Reply #2 on: Jul 28, 2018
Both answers were spot on, thank you once again


anoriega3

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Reply #3 on: Jul 28, 2018
Great! Please up vote :D


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