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Kipish [7]
4 years ago
15

Reconditioning valves is being discussed. Technician A says the valve is stroked across the stone at the same time it is fed in.

Technician B says when the last pass is complete, back the valve out of the stone. Who is correct?
Physics
1 answer:
Vika [28.1K]4 years ago
7 0

Answer:

Technician B is correct

Explanation:

It's very important to back the valve out after the last pass is complete to avoid any form of breakage. This is a precautionary measure.

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A car initially at rest accelerates at 10m/s^2. The car’s speed after it has traveled 25 meters is most nearly... A.) 0.0m/s B.)
STALIN [3.7K]

The car traverses a distance x after time t according to

x=\dfrac12at^2

where a is its acceleration, 10 m/s^2. The time it takes for the car to travel 25 m is

25\,\mathrm m=\left(5\dfrac{\rm m}{\mathrm s^2}\right)t^2\implies t=\sqrt 5\,\mathrm s

5 is pretty close to 4, so we can approximate the square root of 5 by 2. Then the car's velocity v after 2 s of travel is given by

v=\left(10\dfrac{\rm m}{\mathrm s^2}\right)(2\,\mathrm s)\approx20\dfrac{\rm m}{\rm s}

which makes C the most likely answer.

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4 years ago
When a rubber band is pulled back on your finger but not yet let go how is that potential energy?
loris [4]
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4 0
3 years ago
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otez555 [7]

Answer:

The length of the solar day will get shorter.

Explanation:

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Answer:

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S_A_V [24]
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