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question1a blocks slides all along a track that descends through distance h the track is frictionless except for the lower section there block slides
question1find out the normal force for a laundry basket with a mass of 34 kg in each of the following situationsa at rest on a horizontal surfaceb at
questiona rectangular loop has 85 turns with an area of 0225 m2 and lies in a uniform magnetic field of 028 t several physics lab students have
question1a small immersion heater can be used to heat a cup of water for coffee or tea if the heater can heat 180ml from 27 c to 94c in 12 min
question1a long solenoid with 70 turns of wire per centimeter carries a current of 016 the wire that makes up solenoid is wrapped around a solid core
question1if you drop a rock from a height of 71 m it accelerates at g and strikes ground 120374 s laterif you drop the similar rock from half that
question1a 8kg mass moves in a circular path of 4m radius on a frictionless horizontal table it is attached to a string that passes through a
question1imagine you are on a planet similar to earth where an acceleration of gravity is approximately 10 ms2the pulley is massless and frictionless
question1a baseball is thrown at an angle of 20 relative to ground at a speed of 256 ms the ball is caught 429416 m from the throwerthe acceleration
questionat a construction site a 650 bucket of concrete hangs from a light but strong cable that passes over a light friction-free pulley and is
question1a jet plane w a constant speed along a straight line at an angle 30 degrees above horizontal the plane is 86500 n in weight its engines give
question1a curve of radius 160 m is banked at an angle of 11deg an 808-kg car negotiates the curve at 88 kmh without skidding ignore the effects of
question1assume that the balls initial velocity was 45 above the horizontal and ignoring air resistance what did an initial speed of the ball want to
questiona cart of mass m 180 kg can roll without friction on a level track a light string draped over a light frictionless pulley connects the cart
question1a loudspeaker of mass 220 kg is suspended a distance of h 220 m below ceiling by two cables that make equal angles with the ceiling each
question1a space vehicle is travelling at 4190 kmh relative to earth when the exhausted rocket motor is disengaged and sent backward with a speed of
question1a hollow spherical shell has mass 815 kg and radius 0220 m it is firstly at rest and then rotates about a stationary axis that lies along a
question1a 58 kg pole vaulter running at 14 ms vaults over the bar her speed while she is above the bar is 17 ms neglect air resistance as well as
question1a stable nucleus is composed of z protons and n neutrons is the mass of nucleus identical to the sum of the masses of the constituent
question1a 12010 n uniform boom of length l is supported by a cable the boom is pivoted at the bottom the cable is attached a distance 34l from the
question1a student decides to move a box of books into her dormitory room by pulling on a rope attached to a box she pulls with a force of 160 n at
question1the press box at a baseball park is 360 ft above the ground a reporter in the press box looks at an angle of 170deg below the horizontal to
question1a bolt drops from the ceiling of a train car that is accelerating northward at a rate of 350 ms2a what is acceleration of the bolt relative
question1a dockworker applies a constant horizontal force of 760n to a block of ice on a smooth horizontal floor the frictional force is negligible
question1an airplane in a wide outside loop can create an apparent zero weight inside the aircraft cabin what should be the radius of curvature of