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Simora [160]
2 years ago
10

Which of the following statements describe the transfer of energy?

Physics
1 answer:
Lady_Fox [76]2 years ago
7 0

The answer should be A weighlifter lifting 100lb. bell bar from his chest to a certain height.

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Which is not correct when describing the formation of rainbows?
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D- All wave lengths refract at the same angle

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Electromagnetic waves can transfer energy without a(n) _____________ (medium/electric field).
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Medium.
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A: the wavelength of a wave
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3. A large crane lifts a 25,000 kg mass in the air. The amount of work that must be done by the
andreev551 [17]

\mathfrak{\huge{\orange{\underline{\underline{AnSwEr:-}}}}}

Actually Welcome to the concept of Efficiency.

Here we can see that, the Input work is given as 2.2 x 10^7 J and the efficiency is given as 22%

The efficiency is => 22% => 22/100.

so we get as,

E = W(output) /W(input)

hence, W(output) = E x W(input)

so we get as,

W(output) = (22/100) x 2.2 x 10^7

=> W(output) = 0.22 x 2.2 x 10^7 => 0.484 x 10^7

hence, W(output) = 4.84 x 10^6 J

The useful work done on the mass is 4.84 x 10^6 J

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3 years ago
Which state of matter is the least compressible
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Incompressible. Compressibility is determine by the amount of space between particles in each state.  
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