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g100num [7]
4 years ago
12

How do instantaneous speed and average speed differ

Physics
1 answer:
Citrus2011 [14]4 years ago
6 0

Average speed is the speed averaged over a span of time. Usually the total distance covered divided by the total time span. Instantaneous speed would be the speed any any given instant within that span of time, measured with a realtime speedometer.

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Contrast situations where work is done with different amounts of force to situations where no work is done such as standing stil
uranmaximum [27]
Picking up a sheet of paper . . . work done with small force
Picking up a glass of water . . . work done with moderate force
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Standing still . . .
Holding your tongue out as far as it will go . . .
Holding your arm over your head for 3 days . . .
Holding a huge boulder motionless over your head . . .
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. . . . . No work done at all, because the force doesn't move through a distance.

<u>Work done = (force) times (distance)</u>

If the force doesn't move, then the distance is zero, and the work done is zero.
5 0
3 years ago
What causes differences in air pressure around the Earth?
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7 0
4 years ago
What is the gravitational potential energy of a 1.02 kg book on the top of a 2.0m locker
zmey [24]

Answer:

20.4

Explanation:

6 0
3 years ago
Calculate the potential energy of a 6kg bowling ball suspended 3m above the surface of the earth
Valentin [98]

Answer:  176.4 Joules

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h = height of body = 3 m

Potential energy =6 kg\times 9.8ms^{-2}\times 3m=176.4kgm^2s^{-2}

= 176.4Joules                 {1kgm^2s^{-2}=1Joule}


8 0
3 years ago
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4 0
3 years ago
Read 2 more answers
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