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having landed on a newly discovered planet an astronaut sets up a simple pendulum of length 157 meter and finds that it
in the park a mom pushes tangentially on a hand-driven merry-go-round and is able to accelerate it from rest to a
a muon and its antiparticle annihilate each other producing two gamma-ray photons the kinetic energies of the particles
an 80-centimeter long wire is made by welding a 230 millimeter diameter 20-centimeter long copper wire to a 230
a certain spring stretches 6 centimeter when a force of 6 newton is applied to it suppose 5 kilogram mass is attached
the current density in a 3 mum thick times 75mum wide gold long film is 750000 am2 the current flows along the length
responding to an alarm a fireman slides down a pole to the ground floor 33 meter below the fireman starts at rest and
a 365 kilogram box initially at rest is pushed 535 meter along a rough horizontal floor with a fix applied horizontal
a playground merry-go-round of radius r 180 meter has a moment of inertia i 250 kgbullm2 and is rotating at 90 revmin
a pendulum swings through a maximum arc of 1 degree in 1 second later the pendulum is made to swing through a max of
a converging lens f1 260 cm is placed 580 centimeter to the left of a diverging lens f2 -300 cm an object is located
a cubical box is 0185 meter on an edge this box is floating in a lake with 15 of its height beneath the surface the
a man wears contact lens with a focal length f -85 meter is this person farsighted or nearsighted explain find the
a concave mirror of radius of curvature 24 centimeter forms an image such that di -2do compute the object distance do
a real heat engine working between heat reservoirs at 970 k produces 550 joule of work per cycle for a heat input of
a cord is wrapped around the rim of a solid uniform wheel 0300 rm m in radius and of mass 900 rm kg a stable horizontal
an empty rubber balloon has a mass of 00110 kilogram the balloon is filled with helium at a density of 0181 kgm3 at
a nozzle of inner radius 105 mm is connected to a hose of inner radius 800 mm the nozzle shoots out water moving at253
a steady beam of alpha particles q 2e traveling with constant kinetic energy 18 mev carries a current of 030 microaa
an underwater scuba diver sees the sun at an apparent angle of 450 degree from the vertical determine the actual
the length of the column of mercury in thermometer is 40 centimeter when the thermometer is immersed in ice water and
frankie and johnny are going to play tennis they will play best 2 out of 3 that is they will play until one of them
a cylindrical disk has volume 89810-3 m3 and mass 798 kg the disk is floating on the surface of some water with its
a person has forgotten the last digit of a telephone number so he dials the number with the last digit randomly chosen
the owner of a van installs a rear-window lens that has a focal length of -0295 m when the owner looks out during the