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question1a lunar landing craft approaches the moonrsquos surface suppose that one-third of itsnbspweight is fuel that exhaust velocity from its
question1consider mass and a frictionless ramp the mass is pushednbspupward with some initial velocity since of inuence of gravity it moves
question1train springnbspa number of train stations have large horizontal springs at the ends of the tracks these are safety devices to stop train so
question1 two boxes of equal mass m are placed one on top of each other in case 1 an applied force acts on box b while a is fixed to a wall by a rope
question1a small ball of mass 2x10-3 kg having a charge of 1uc is suspended by string of length 08 m another identical ball having same charge is
questionan ideal gas is placed in a tall vertical cylinder with cross-sectional area a 01 m2nbspa frictionless moveable piston is located vertically
question1a two kilogram block is dropped from a height of 045m above an incompressible spring the spring has an elastic constant of 200nm and a
question1a 50m diameter garden pond holds 159x103 of water solar energy is incident on pond at an average rate of 400 watts per meter squared if
question1a 50-kg student on a sled starts from rest at a vertical height of 20 m above horizontal base of a hill and slides down a if sled and the
question1a 1200-kg automobile travels at a speed of 12 msnbsp a what is it the kinetic energy b what is work that would be required to bring it to a
question1a 2 kg ball of clay travelling west at 10 ms collides with 1 kg ball of clay travelling north at 5 ms what is speed of the resulting ball of
question1assume you had done the latent heat of fusion experiment with ice that was considerably colder than 0 degc what other value would you have
question1as thermonuclear fusion proceeds in its core the sun loses mass at a rate of 364 109 kgs for the duration of the 5000-yr period of recorded
question1an ideal gas expands at a constant pressure of 600 105 pa from a volume of 100 m3 to a volume of 400 m3 and then is compressed to one-third
question1a rock is thrown from edge of the top of a 100-ft tall building at some unknown angle above the horizontal the rock strikes ground a
questionassume that a climber having mass m and who are l tall rappels down a vertical cliff with her body rose at a 43 degree angle above the
questiona person bending forward to lift a load with his back rather than with his knees can be injured by large forces exerted on the muscles and
question1drop solid sphere of aluminium into a bucket of water sitting on ground the buoyant force equals weight of water displaced that is less than
questioncora lies in a tanning bed getting a tan suppose that as 079 m2 of her skin is exposed to the light from the ultraviolet uv lamps the uv
questionin an x-ray machine electrons are accelerated and then fired so that they are incident on a metal target which part of the process produces
question1a hiker makes four straight-line walks a 20 km at 274o b 12km at 48onbspc 33 km at 150onbspd 30km at 20onbspin random directions and lengths
question1in a ldquorotor-riderdquo at a carnival people rotate in a vertical cylindrically wallednbspldquoroomrdquo if the room radius was 55 m and
question1-what would be direction of the surface winds that would exist in the tropics mid-latitudes and polar regions if the earth were rotating
question1a block of mass m1 4 kg moves from rest under the influence of a varying force fx 4x 38 where f is in newtons and x is in meters on a
question1a 25mw jet engine produces a sound level of 120db threshold of pain at a distance of 100m from the engine recall the threshold of human