3 years ago

Which simple machine is NOT correctly matched with an appropriate task for its use?

1 answer:

6 0

The simple machine that is not correctly matched with its appropriate task is the inclined plane because there is no such big ramp that is as high as 1 storey building, the appropriate task would be Lifting a heavy box and moving it across a room. and for the pulley : <span>Moving a heavy box up to the second floor of a building.</span>

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A 2.0kg pendulum swings from point A of a height of 0.10m to a point B of the same height. The heights are relative to the lower

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Please press “Thanks!” after viewing my answer:
The change in Gravitational Potential Energy (GPE) is actually 0! Think about it:
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Well, GPE = mgh.
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The Starship Enterprise speeds past an asteroid at 0.920c. If an observer on the asteroid sees 10.0 seconds pass on her watch, h

lukranit [14]

Answer:

25.52 seconds

Explanation:

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$\Delta t'=\frac{\Delta t}{\sqrt{1-\frac {v^2}{c^2}}}\\\Rightarrow \Delta t'=\frac{10}{\sqrt{1-\frac {0.92^2c^2}{c^2}}}\\\Rightarrow \Delta t'=\frac{10}{\sqrt{1-0.92^2}}\\\Rightarrow \Delta t'=25.52\ s$

∴ Time interval be if measured by an observer on the Enterprise would be 25.52 seconds

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