Before the invention of a wheel turning on an axle, ancient people moved heavy loads by placing rollers under them. (modern people use rollers, too. any hardware store will sell you a roller bearing for a lazy susan.) a stone block of mass 672 kg moves forward at 0.319 m/s, supported by two uniform cylindrical tree trunks, each of mass 82.0 kg and radius 0.343 m. no slipping occurs between the block and the rollers or between the rollers and the ground. find the total kinetic energy of the moving objects.
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Physics, 22.06.2019 03:30, dmarte11092001
What makes thermal imaging cameras useful? they can detect differences in color. they can detect differences in wave speeds. they can detect differences in temperature. they can detect mechanical waves.
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Physics, 22.06.2019 15:30, championroof
What is a costume plot? why is it important to a film or theater production?
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Physics, 22.06.2019 15:50, rosepetals2938
If the work required to stretch a spring 3 ft beyond its natural length is 15 ft-lb, how much work is needed to stretch it 27 in. beyond its natural length?
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Physics, 23.06.2019 02:10, eddiecas
The average atmospheric pressure on earth is approximated as a function of altitude by the relation patm = 101.325 (1 − 0.02256z)5.256, where patm is the atmospheric pressure in kpa, and z is the altitude in km with z = 0 at sea level. determine the approximate atmospheric pressures at atlanta (z = 306 m), denver (z = 1610 m), mexico city (z = 2309 m), and the top of mount everest (z = 8848 m).
Answers: 3
Before the invention of a wheel turning on an axle, ancient people moved heavy loads by placing roll...
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