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ololo11 [35]
4 years ago
13

A force of 88 N is used to move a couch 2.1 m. How much work is done?

Physics
1 answer:
lesya692 [45]4 years ago
7 0
Given:\\F=88N\\s=2.1m\\\\Find:\\W=?\\\\Solution:\\\\W=\overrightarrow{F}\circ\overrightarrow{s}\\\\In\;these\;case\\\\W=Fs\;\;\;\;because\;\angle(\overrightarrow{F},\overrightarrow{s})=0\\\\W=88N\cdot 2.1m=184.8J\\\\Correct\;answer\;is\;A
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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)

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The details of calculation can be found below in the attachment.

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A race car travels 44.3 m/s around a banked (45° with the horizontal) circular (radius = 200 m) track. What is the magnitude of
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3 years ago
Which of these letters is the symbol for current in equations A: c B: i C: r D: t
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Read 2 more answers
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snow_lady [41]

For electrical devices . . .

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5 0
3 years ago
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