Physics, 12.12.2019 18:31 loraine8401
As a physical science demonstration, jack and jill ran up the hill at the football stadium. jack is twice as massive as jill, but jill runs the same distance in half the time. compare the work done and power of jack and jill. a) jack did more work than jill but jill has more power. b) jill did more work than jack but jack had more power. c) jack did more work than jill but jill has as much power as jack. d) jack and jill did the same amount of work but jack had more power.
Answers: 3
Physics, 22.06.2019 12:10
Awater slide of length l has a vertical drop of h. abby's mass is m. an average friction force of magnitude f opposes her motion. she starts down the slide at initial speed vi. use work-energy ideas to develop an expression for her speed at the bottom of the slide. then evaluate your result using unit analysis and limiting case analysis. express your answer in terms of the variables h, m, l, vi, f and appropriate constants. vf v f
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Which best describes the difference between internal and thermal energy?
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Physics, 22.06.2019 20:00
An element becomes a positively charged ion when itloses protons.loses electrons.gains electrons.gains neutrons.
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As a physical science demonstration, jack and jill ran up the hill at the football stadium. jack is...
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