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An apple that weights 2.7 N falls vertically downward from rest for 1.4 s.
a) What is the change in the apple's momentum per second?
b) What is the total change in its momentum during the 1.4-second fall?
(a) Determine the distance of the final image relative to the converging lens. (b) What is the height of the final image (including the proper algebraic sign)?
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Estimate the pressure exerted on a floor by the following one pointed chair leg (56 kg on all four legs) of area = 0.06 cm2 N/m2
What is the longest wavelength of light that can be absorbed by a hydrogen atom that is initially in the second excited state
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