Sam, whose mass is 71kg , takes off across level snow on his jet-powered skis. The skis have a thrust of 250N and a coefficient of kinetic friction on snow of 0.1. Unfortunately, the skis run out of fuel after only 10s. What is Sam's top speed? (Express Answer in 2 sig figures & correct units)How far has Sam traveled when he finally coasts to a stop? (Express Answer in 2 sig figures & correct units)
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Physics, 21.06.2019 23:10
6–55 refrigerant-134a enters the condenser of a residential heat pump at 800 kpa and 358c at a rate of 0.018 kg/s and leaves at 800 kpa as a saturated liquid. if the compressor consumes 1.2 kw of power, determine (a) the cop of the heat pump and (b) the rate of heat absorption from the outside air.
Answers: 2
Physics, 21.06.2019 23:30
Which of the following statements is true about women and minorities in early psychology? a. in the early 20th century, numerous graduate schools recruited women and minorities to study psychology. b. opportunities in higher education were limited for women and minorities in the early 20th century due to discrimination. c. despite some obstacles, there were numerous employment opportunities for women and minorities. d. women and minorities were often selected to do academic research in an effort to make the field more diverse.
Answers: 3
Physics, 22.06.2019 10:30
Astone weighing 1.5 kilograms is resting on a rock at a height of 20 meters above the ground. the stone rolls down 10 meters and comes to rest on a patch of moss. the gravitational potential energy of the stone on the moss is joules.
Answers: 1
Sam, whose mass is 71kg , takes off across level snow on his jet-powered skis. The skis have a thrus...
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