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❶What is the instantaneous rate at which the force does work on the object? Add that to the net thermal energy in the box at the end.

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Harm to minors, violence or threats, harassment or privacy invasion, impersonation or misrepresentation, fraud or phishing, show more. Engineers are designing a system by which a falling mass m imparts kinetic energy to a rotating uniform drum to which it is attached by thin, very light wire wrapped around the rim of the drum the figure Figure 1.

There is no appreciable friction in the axle of the drum, and everything starts from rest. This system is being tested on earth, but it is to be used on Mars, where the acceleration due to gravity is 3.

In the earth tests, when m is set to But in part b, How fast would the Are you sure you want to delete this answer? If the drum gained of those J, the mass must have gained the rest: The answer is approximately 9. Related Questions Physics homework help, mastering physics?

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Physics Homework Help. Study of science of matter, energy and the relation between them is called physics. The study began prior to ancient Greek era when matter started becoming the subject of human interest. Nov 07,  · HELP PLEASE!!:) (2)Compute the x and y coordinates of the centre of mass of the piece. => i'm not sure what steps are to computing coordinates.

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Physic Homework Help If you talk to anyone who is currently a student or has ever attended high school or college, they will likely tell you that the most challenging thing they’ve ever had to go through is completing all the endless physics homework. Electric potential energy and potential difference; Physics Assignment Help: Equipotential surfaces and the electric field ; Resistances in series, parallel, and series-parallel combinations Following is our simple process for helping you in your Physics Homework Help Needs: Email us your Physics Assignment problem statement Or .