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a 70-kg astronaut is space-walking outside the space capsuleand is stationary when a tether line breaks as a means
a point mass m is rotated at a distance r about an axis ifthe mass is increased to 2m what is the new moment ofinertia
five grams of nitrogen gas at an initial pressure of 30 atmand at 20c undergo an isobaric expansion until the volume
a rubber ball with a radius of 32cm rolls along the horizontal surface of a table with a constant linear speed v when
a light ray in carbon tetrachloride isincident on sodium chloride at a5deg angle ofincidence find the angle of
the drawing shows an edge-on view of the solar panels on acommunications satellite the dashed line specifies the normal
a light bulb emits light uniformly in all directions the averageemitted power is 1500 w at a distance of 7 m from the
a golfer hits a shot to a green that is elevated 30 m above the point where the ball is struck the ball leaves the club
an insect is trying to walk on a turntable and with respect to theturntable its motion is a constant speed vodirectly
a communications satellite is in a synchronous orbit that is 36 x107 m directly above the equator the satellite
a level road has a turn with a 50m radius of curvature what is the max speed for a car to negotiate this turn when the
a person who weighs 600 n is riding a 98 nmountain bike suppose the entire weight of the rider and bike is supported
a rock has a volume of 950 cm3 when it is completelysubmerged in a beaker of water what buoyant force does the water
a light fixture of 100n hangs from a verticalchain that is tied to two other cables that are fastened to asupport both
how much heat in kcal must be added to 068 kg of water atroom temperature 20 c to raise its temperature to 39 ckcala
say you have a 10 kg book sitting on a table you pick that book upand place it 3 m below on the ground what is the work
a loop of wirein the plane of the floor has a clockwise current of 778a the radius of the loop is 197cma use the biot
an astronomical telescopeuses a diverging lens as the eyepieceand a converging lens as the objectivea converging lens
a charged particle moves through a velocity selector at a constantspeed in a straight line the electric field of the
a copper wire of length 05 cm is in a magnetic field of 20 t if it has a mass of 10 g what is the minimum current
a spring is undergoing simple harmonic motion the points y a0 and y -a0 are the endpoints of thesprings motion let y
a toaster uses a nicrhrome heating wire when the toaster isturned on at 20o c the initial current is 15a a few seconds
a rock is on a slope at an angle of 345degree with respect to the horizontal the mass of the rock is327 kg1 what is the
a commuter train blows its horn as it passes a passenger platformat a constant speed of 400 ms the horn sounds at a
an ideal gas has its pressure cut in half slowly while being kept in a container with rigid walls in the process 260 kj