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loris [4]
3 years ago
12

If 11,550 J heat is absorbed by a copper object when it is heated from 20.0°C to 30.0°C,

Physics
1 answer:
RSB [31]3 years ago
5 0

Answer:

The mass of the copper is 3.00kg

Explanation:

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1. An astronaut is getting ready to explore. If his mass is 60 kg, what is his weight<br> on Earth?
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Explanation:

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A 1100 kgkg safe is 2.4 mm above a heavy-duty spring when the rope holding the safe breaks. The safe hits the spring and compres
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Answer:

191.36 N/m

Explanation:

From the question,

The Potential Energy of the safe = Energy of the spring when it was compressed.

mgh = 1/2ke²............... Equation 1

Where m = mass of the safe, g = acceleration due to gravity, h = height of the save above the heavy duty spring , k = spring constant, e = compression

Making k the subject of the equation,

k =2mgh/e²................ Equation 2

Given: m = 1100 kg, h = 2.4 mm = 0.0024 m, e = 0.52 m

Constant: g = 9.8 m/s²

Substitute into equation 2

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