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Physics, 30.03.2021 17:10 marcgotbox
It requires 1250 J of work to lift a car high enough to change a tire. How much work must done by the person operating the lift if the car jack is 45% efficient?
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Physics, 22.06.2019 12:30, olsen6932
As part of your daily workout, you lie on your back and push with your feet against a platform attached to two stiff springs arranged side by side so that they are parallel to each other. when you push the platform, you compress the springs. you do an amount of work of 79.0 j when you compress the springs a distance of 0.230 m from their uncompressed length. (a) what magnitude of force must you apply to hold the platform in this position? (b)how much additional work must you do to move the platform a distance 0.230 m farther? (c) what maximum force must you apply to move the platform a distance 0.230 m farther?
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Physics, 22.06.2019 14:30, joslynndiggs
Explain what it means to view something from a frame of reference. provide an example that illustrates your explanation. (4 points)
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It requires 1250 J of work to lift a car high enough to change a tire. How much work must done by th...
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