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Paul [167]
3 years ago
5

Describe what is inside a spring balance and explain how it works. ​

Physics
1 answer:
kotykmax [81]3 years ago
4 0

Answer:

The spring balance (also known as spring scale) is simply a spring fixed at one end with a hook to attach an object at the other. It works by Hooke's Law, which states that the force needed to extend a spring is proportional to the distance that spring is extended from its rest position.

HOW IT WORKS:

It consists of a spring fixed at one end with a hook to attach an object at the other. It works by Hooke's Law, which states that the force needed to extend a spring is proportional to the distance that spring is extended from its rest position. Therefore, the scale markings on the spring balance are equally spaced.

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hence option A is correct

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heat required from -9°C to 0°C ice = mass × specific heat of ice ×change in temperature

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TOTAL HEAT ENERGY REQUIRED = 0.1323 MJ +2.352 MJ

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