subject
Physics, 23.10.2019 23:00 aaronscott6474

A65.2-kg skier coasts up a snow-covered hill that makes an angle of 33.3 ° with the horizontal. the initial speed of the skier is 8.05 m/s. after coasting a distance of 1.26 m up the slope, the speed of the skier is 4.54 m/s. (a) find the work done by the kinetic frictional force that acts on the skis. (b) what is the magnitude of the kinetic frictional force?

ansver
Answers: 2

Another question on Physics

question
Physics, 22.06.2019 00:30
Asap time is ! best answer gets compose at least one well-developed paragraph on the following: define the term concurrent powers, and give an example of a concurrent power of government.
Answers: 1
question
Physics, 22.06.2019 11:40
Imagine that you have two balloons (or, better yet, actually inflate two balloons, if possible). create static electricity around one of the balloons by rubbing it against your hair or your sweater and then bring that balloon close to the other balloon, which has not been charged. try this with at least one other object—and for variety in the discussion, avoid using an object already described by your classmates. then, for your initial post to the discussion, answer the following questions: what happened with the two balloons?
Answers: 3
question
Physics, 22.06.2019 12:30
What is the equation for electrical work?
Answers: 3
question
Physics, 22.06.2019 14:20
4r-134a enters the condenser of a residential heat pump at 800 kpa and 50°c at a rate of 0.022 kg/s and leaves at 750 kpa subcooled by 3°c. the refrigerant enters the compressor at 200 kpa superheated by 4°c determine (a) the isentropic efficiency of the compressor, (b) the rate of heat supplied to the heated room, and (c) the cop of the heat pump. also, determine (d) the cop and rate of heat supplied to the heated room if this heat pump operated on the ideal vapor-compression cycle between the pressure limits of 200 and 800 kpa. (0.757, 4.37 kw, 5.12, 6.18, 3.91 kw)
Answers: 3
You know the right answer?
A65.2-kg skier coasts up a snow-covered hill that makes an angle of 33.3 ° with the horizontal. the...
Questions
Questions on the website: 13722361