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a skier starts from rest at the top of a hill that is inclined at105 degrees with the horizontal the hillside is 200
a swing is made from a rope that will tolerate a maximum tension of70 102 n without breaking initially theswing hangs
starting from rest you travel a distance of 1600 meters around a giant redwood tree with a circumference of 450 m the
a large rectangular raft density 650kgm3 is floating on alake the surface area of the top of the raft is 82m2 andits
a fountain with an opening of radius 0015m shoots a stream ofwater vertically from ground level at 60ms the density of
bicyclists in the tour de france do enormous amounts of work duringa race for example the average power per kilogram
a football player kicks a ball at an angle of 37 degrees from the horizontal with an initial speed of 50ftsec and the
an electric field applies a force of 911x10-16n to an elctron emitted from the cathode-ray tube at essentially zero
a box is sliding down a plane inclined at an angle of 20degrees from the horizontal find the acceleration of
betelgeuse has a radius 650 times that of the sun and a massfifteen times that of the sun how fast must a planet at 10
a hydraulic lift is used to jack a 870kg car 12 cm off the floor thediameter of the output piston is 18 cm and the
a spring is hanging from the ceiling attaching a 360 g physics book to the spring causes it tostretch 10 cm in order to
one car is place on a ramp that makes an angle of 15owith the horizontal it has a mass of 2kg a second car with a mass
an indestructible bullet 200 cm long is fired straight through aboard that is 100 cm thick the bullet strikes the board
a tortoise can run with a speed of 140 cms and a hare can run 20 times as fast ina race they both start at the same
the intensity of laser light of 620 nm wavelength incident on a solid surface with a work function of 05 ev is doubled
in a nuclear power plant the fuel rods last 300 year beforethey are replaced if a plant with rated thermal power 100gw
a car travels along a road at an average speed of 40kmh andreturns along the same road at an average speed of 60kmh
a carnot engine operates between 245degc and 135degc absorbing 630 104 jper cycle at the higher temperaturea what is
two people are pushing their stalled car up a hill with anincline of 420 degrees they are pushing parallel to the
astronomers have recently measured the rotation of gas around what might be a supermassive black hole of about 2
a parallel-plate capacitor in air has circular plates of radius 25cm separated by 13 mm charge is flowing onto the
a car drives straight off the edge of a cliffthat is 54 m high the police at the scene of the accident observethat the
an electron with a speed of 750 x 108 cms enters an electric field of magnitude 100 x 103 nc traveling along the field
two ropes are attatched to a heavy object the ropes aregiven to two strong women with the instructions for each to pull