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Ne4ueva [31]
3 years ago
10

The area of cross section of the end A of a U tube is 0.01 m square. The area of cross section at the end B is 0.1 m square. If

100 N is applied on the piston,
A . Find out the force acting on the piston at the end B.
​
Mathematics
1 answer:
lisov135 [29]3 years ago
6 0
  • Area=0.1m^2(B),0.01m^2(A)
  • Force=100N,F1

\\ \rm\longmapsto Pressure=\dfrac{Force}{Area}

\\ \rm\longmapsto\dfrac{F_1}{F_2}=\dfrac{A_1}{A_2}

\\ \rm\longmapsto F_1=A_1F_2/A_2

\\ \rm\longmapsto F_1=\dfrac{0.1(100)}{0.01}

\\ \rm\longmapsto F_1=\dfrac{10}{0.01}

\\ \rm\longmapsto F_1=1000N

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Answer:

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Answer:

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A paired t-test is used to compare two population means where you have two samples in  which observations in one sample can be paired with observations in the other sample. For example  if we have Before-and-after observations (This problem) we can use it.  

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x=test value 2017 , y = test value 2019

x: 28.7 32.1 29.6 30.5 31.9 30.9 32.3 33.1 29.6 30.8 31.1 31.6

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