<img src="https://tex.z-dn.net/?f=%5Cint%5Climits%5Ea_b%20%7B7x%7D%20%5C%2C%20dx" id="TexFormula1" title="\int\limits^a

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pishuonlain [190]

3 years ago

, dx" alt="\int\limits^a_b {7x} \, dx" align="absmiddle" class="latex-formula">

Engineering

1 answer:

Dafna11 [192]3 years ago

5 0

Answer:

$\frac{7}{2}a^2 - \frac{7}{2}b^2$

Explanation:

$\int\limits^a_b {7x} \, dx$

$=[\frac{7}{2}x^2]^a_b$

$=\frac{7}{2}a^2 - \frac{7}{2}b^2$

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Step2

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$\bigtriangleup p=rho_{sw}gh$

$\bigtriangleup p=1025\times9.81\times320$

$\bigtriangleup p=3217680$ pa.

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