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ExtremeBDS [4]
3 years ago
5

Diffrerentiate y=cos^{4} (3x+1)

Engineering
1 answer:
Aleksandr [31]3 years ago
7 0

Answer:

-6sin(6x+2)cos²(3x+1)dx.

Explanation:

dy=4*cos^3(3x+1)*3*(-sin(3x+1))dx=-6sin(6x+2)cos^2(3x+1)dx.

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A consolidation test was performed on a sample of fine-grained soil sample taken from a depth such that the vertical effective s
Scorpion4ik [409]

Answer:

The settlement that is expected is 1.043 meters.

Explanation:

Since the pre-consolidation stress of the layer is equal to the effective stress hence we conclude that the soil is normally consolidated soil

The settlement due to increase in the effective stress of a normally consolidated soil mass is given by the formula

\Delta H=\frac{H_oC_c}{1+e_o}log(\frac{\bar{\sigma_o}+\Delta \bar{\sigma }}{\bar{\sigma_o}})

where

'H' is the initial depth of the layer

C_c is the Compression index

e_o is the inital void ratio

\bar{\sigma_o} is the initial effective stress at the depth

\Delta \bar{\sigma_o} is the change in the effective stress at the given depth

Applying the given values we get

\Delta H=\frac{8\times 0.3}{1+0.87}log(\frac{154+28}{154})=1.04

3 0
3 years ago
Which of the following is NOT part of a car's drive train?
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Answer:

B. rotor

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The correct answer Is rotor because the others are part of a cars drivetrain

3 0
2 years ago
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All of these are uses of microwaves except...
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Answer:D

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A team of engineers is designing a new rover to explore the surface of Mars. Which statement describes the clearest criterion fo
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Which regulations are related to guard rail height and dimensions and uniformity of stairs?
galina1969 [7]

Answer:

C.

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