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Lerok [7]
3 years ago
14

Melissa's favorite exercise equipment at the gym consists of various springs. in one exercise, she pulls a handle grip attached

to the free end of a spring to 0.80 m from its unstrained position. the other end of the spring (spring constant = 45 n/m) is held in place by the equipment frame. what is the magnitude of the force that melissa is applying to the handle grip?
Physics
1 answer:
konstantin123 [22]3 years ago
6 0

The formula for force exerted on/by a spring is 

F = k*e where k is the spring constant and x is the distance stretched from unstrained position. This should allow you to find what you need.

 

Using F = k x e, 


where k is the spring constant, 


and e is the extension, 


The F is her weight = 45 X 0.80 


= 36 N

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Answer:

500cal

Explanation:

Given parameters:

Mass of water  = 50g

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Final temperature  = 32°C

Specific heat of water  = 1cal/g

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Amount of heat absorbed by the water in calories  = ?

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