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lys-0071 [83]
3 years ago
7

An airtight box has a removable lid of area 1.10 10-2 m2 and negligible weight. The box is taken up a mountain where the air pre

ssure outside the box is 7.00 104 Pa. The inside of the box is completely evacuated. What is the magnitude of the force required to pull the lid off the box
Physics
1 answer:
andrezito [222]3 years ago
4 0

Answer:

F=7.7\times10^2 N

Explanation:

The magnitude of force required to pull the lid off the box by air pressure.

We know that Pressure, P= Force(F)/Area(A)

Force, F= P×A

Given: A=1.10\times10^{-2} m^2

P=7\times10^{4} Pa.

Therefore, F=7\times10^{4}\times1.10\times10^{-2}.

F=7.7\times10^2 N

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3 years ago
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While traveling along a highway a driver slows from 24 m/sec to 15 m/sec in 12 seconds. What is the
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Question 23
bonufazy [111]

If the gymnast mass were doubled, her height (h) from the top of the board would be as follows,

с  Stay the same

Explanation:

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  • Light weight objects accelerate more slowly than the heavy objects because when the forces other than the gravity also plays a major role.
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3 years ago
A fly travels along the x-axis. His starting point is x = 16 m and his ending point 15x = - 25 m. His flight lasts 4.0 seconds H
gogolik [260]

Explanation:

Starting position at x  = 16m

Ending position at x  = -25m

Time of flight  = 4s

Unknown:

Distance flown  = ?

Displacement  = ?

Speed  = ?

Velocity  = ?

Solution:

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Displacement is 41m to the left or -x axis

Speed is the distance divided by the time taken;

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Velocity is 10.25m/s along -x axis

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2 years ago
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Answer:

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Explanation:

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