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bija089 [108]
3 years ago
10

Please help ASAP!!

Engineering
2 answers:
masha68 [24]3 years ago
8 0

Answer:

C

Explanation:

Tems11 [23]3 years ago
4 0

Answer:

a. Falls

Explanation:

plato

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The forming section of a plastics plant puts out a continuous sheet of plastic that is 1.2 m wide and 2 mm thick at a rate of 15
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Gas is kept in a 0.1 m diameter cylinder under the weight of a 100 kg piston that is held down by a spring with a stiffness k =
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The spring is compressed by 0.275 meters.

Explanation:

For equilibrium of the gas and the piston the pressure exerted by the gas on the piston should be equal to the sum of  weight of the piston and the force the spring exerts on the piston

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Force_{pressure}=Force_{spring}+Weight_{piston}

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Force_{pressure}=Pressure\times Area=300\times 10^{3}\times \frac{\pi \times 0.1^2}{4}=750\pi Newtons

Weight_{piston}=mass\times g=100\times 9.81=981Newtons

Now the force exerted by an spring compressed by a distance 'x' is given by Force_{spring}=k\cdot x=5\times 10^{3}\times x

Using the above quatities in the above relation we get

5\times 10^{3}\times x+981=750\pi \\\\\therefore x=\frac{750\pi -981}{5\times 10^{3}}=0.275meters

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A circular hoop sits in a stream of water, oriented perpendicular to the current. If the area of the hoop is doubled, the flux (
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The flux (volume of water per unit time) through the hoop will also double.

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This means that

Flow rate = AV

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V is the velocity of the water through the hoop

This flow rate = volume of water per unit time = Δv/Δt =Q

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