Physics, 18.12.2019 07:31, ShayMoore

Across-country skier can complete a 7.5 km race in 45 min. what is the skier’s average speed?

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Physics, 21.06.2019 19:30, lily3934

11. you want to calculate the displacement of an object thrown over a bridge. using -10 m/s2 for acceleration due to gravity, what would be the total displacement of the object if it took 8 seconds before hitting the water?

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Physics, 22.06.2019 12:10, davidoj13

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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Physics, 22.06.2019 16:30, yagalneedshelp8338

Acalorimeter uses the principle that thermal energy flows from hotter material to colder material until both reach the same

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Physics, 23.06.2019 00:10, 2002boo13

Consider a small frictionless puck perched at the top of a fixed sphere of radius r. if the puck is given a tiny nudge so that it begins to slide down, through what vertical height will it descend before it leaves the surface of the sphere? [hint: use conservation of energy to find the puck's speed as a func e conservation of energy to find the puck's speed as a function of its height at what value of this normal force does the puck leave the sphere? ] here on the puck.