Askier starts from rest at the top of a hill. the skier coasts down the hill and up a
se...
Askier starts from rest at the top of a hill. the skier coasts down the hill and up a
second hill, as the drawing illustrates. the crest of the second hill is circular, with a
radius of r=36 m. neglect friction and air resistance. what must be the height h of
the rst hill so that the skier just loses contact with the snow at the crest of the second
hill? (hint: here you may want to use both energy conservation and force methods as
part of your solution. in any case you should identify what forces would be directed
radially inwards when the skier is at the crest of the second hill and remember that
these are the forces that would generate the skier's centripetal acceleration. of these
forces, which would vanish if contact between the skier and the hill was lost? this
force might then be set to zero in the solution.)
Answers: 3
Physics, 22.06.2019 10:30, Bayabbay8380
Arunner is training for an upcoming marathon by running around a 100-m-diameter circular track at constant speed. let a coordinate system have its origin at the center of the circle with the x-axis pointing east and the y-axis north. the runner starts at (x, y) = (50 m, 0 m) and runs 2.5 times around the track in a clockwise direction.
Answers: 1
Physics, 22.06.2019 17:00, deathray4035
Photons with the highest energy have the longest period
Answers: 1
Physics, 22.06.2019 18:10, victoriakraus6599
A200-n force is applied to the foot-operated air pump. the return spring s exerts a 2.6-n·m moment on member oba for this position. determine the corresponding compression force c in the cylinder bd. if the diameter of the piston in the cylinder is 40 mm, estimate the air pressure generated for these conditions. state any assumptions. enter a positive number for the compression force c.
Answers: 2
Mathematics, 22.04.2021 15:40
Physics, 22.04.2021 15:40
Mathematics, 22.04.2021 15:40
Mathematics, 22.04.2021 15:40