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zimovet [89]
3 years ago
14

What is the purpose of a valve?

Physics
2 answers:
user100 [1]3 years ago
8 0
To prevent blood backflow!

Aleks04 [339]3 years ago
5 0
In general or valves are used to turn off or proportionately control the flow of fluid through any system. Your faucet in your bathroom is a type of valve. You can turn it all the way off and all the way on, but you can also turn it on a little bit at a time.
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A 6 kg weight is lifted off the ground to a height that gives it 70.56 j of gravitational potential energy. what is its height?
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GPE= 70.56 J -------------------> GPE= mgh-------------> X= height
70.56 = 6(kg) * 9.8(m/s/s) * X
70.56 = 58.8X
70.56/58.8= 58.8X/58.8
X= 1.2
The height is 1.2 feet or meters (whatever unit you are using in this problem)

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