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Q. A student of weight 665 N rides a steadily rotating Ferris wheel (the student sits upright). At the highest point, the magnitude of the normal force N on the student from the seat is 566 N. (a) What is the magnitude of N at the lowest point? If the wheel's speed is doubled, what is the magnitude FN at the (b) highest and (c) lowest point?

Q. Calculate the mass defect in U and the energy produced in MeV each time the reaction takes place if the atomic mass of 4HE equals 4.00260u and atomic mass of 12C equals 12.00000u?

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