Heat of vaporization of ethyl alcohol
The heat of vaporization of ethyl alcohol is about 200 cal/g. If 1.3 kg of it were allowed to vaporize in a refrigerator, how many grams of ice would be formed from 0°C water?
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What phase difference between two otherwise identical traveling waves, moving in the same direction along a stretched string, will result in the combined wave having an amplitude 1.6 times that of the common amplitude of the two combining waves?
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What is the fractional increase in the thread's length caused by the spider? same as that of the spider's thread?
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337 kg mass is attatched to a spring with a spring constant of 197 N/m so that the mass is allowed to move on a horizontal frictionless surface. The mass i released from rest when the spring is compressed to .162 m. Find the maximum force on the m
Constable Bob inspected skid marks near a traffic accident to determine the acceleration of initial velocity of the lawn mower involved in the accident. Bob measured the lawn mower skid marks to be 32 m long.
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An electron confined in a one-dimensional box is observed, at different times, to have energies of 12 {rm eV}, 27 {rm eV}, and 48 {rm eV}. What is the minimum length of the box?
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