A laptop can convert 400J of electrical energy into a 240J of light and sound. What is the efficiency? Where does the rest of th
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Answer:
The funda mental frequency of the original tube is 182Hz.
Explanation:
See the attachment for the calculation steps.
In order to calculate the fundamental frequency of the original closed tube we need to find the length of the tube which is equal to the sum of the lengths of the two new tubes.
For closed tubes
f = nv/4L (n = 1, 3, 5,...n)
f = nv/2L (n = 1, 2, 3,...n)
The details of calculation can be found below in the attachment.
A. <span>Standing is health-enhancing because it uses energy.
Because standing can burn a lot of calories.</span>
Because standing can burn a lot of calories.</span>