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Q. How many joules of energy are necessary to heat a sample of water with a mass of 46.0 grams from 0.0 àC to 100.0 àC? (Use 4.184 J/gàC for the specific heat of water.)

Q. A box slides down a 22° ramp with an acceleration of .92m/s2. Determine out the coefficient of kinetic friction between the box and the ramp.

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