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a 1200 kg automobile crashes into a brick wall collapsing thefront end 15 meters if the averge retarding force applied
caffeine is basic show the reaction of caffeine with aqueous hydrochloric acid to give caffeine hydrochloride reaction
a pendulum consists of a 38 kg stone swinging on a 36 m string ofnegligible mass the stone has a speed of 94 ms when it
a hydraulic lift is used to jack a 1120kg car 10 cm off the floor the diameterof the output piston is 18 cm and the
do the following titration and find concentrations of everything in solution you have a diprotic acid h2b titrated
a airplane is flying at a velocity of 240ms and a angle of 30degrees when the altitude of the plane is 24 km a flare is
a large fake cookie sliding on a horizontal surface is attached toone end of a horizontal spring with springconstant k
a worker is to paint the walls of a square room 790 ft high and 180 ftalong each side what surface area in square
a circular coil radius 040 m has 160 turns and is in a uniformmagnetic field if the orientation of the coil is varied
a mass oscillates up and down on a vertical spring with anamplitude of 6 cm and a period of 2 s what total distance
a spring hanging from the ceiling has an unstretched length of 80cm a mass is then suspended at rest from the spring
a copper wire of length 25 cm is in a magnetic field of 020 t ifit has a mass of 10 g what is the minimum current
there is a current i flowing in a clockwise direction in a squareloop of wire that is in the plane of the paper if the
four long straight wires parallel to the z axis pass through the points plusmn85 cm plusmn85 cm at the corners of a
in 18 micros an electronmoves 23 cm in the direction ofa 022 t magnetic field theelectrons velocity components
a person scuffing her feet on a wool rug on a dry day accumulates anet charge of -466 microcoulombs how many excess
a 69 cm diameter loop of wire is initiallyoriented perpendicular to a 14 t magnetic field the loop is rotated so
a 212 g sample of a metal was heated to 6198 degrees c when the metal was placed in a constant-pressure calorimeter
an 185 kg box initially at rest is pushed 263 m along a rough horizontal floor with a constant applied horizontal force
state whether q w deltah and deltau are positive negative or zero for the following system include reasoningreversible
what is the magnitude of the acceleration of a rising hot-air balloon if the ratio of the air density outside the
a 939 g bullet is fired from a rifle having a barrel 0256 m long assuming the origin is placed where the bullet begins
teflonis a polymer synthsised by polymerisation of tetrafluoroethylene f2ccf2 use atomic masses c 12 f 19 and answers
hearing damage may occur when a person is exposed to a soundintensity level of 900 db relative to the threshold of
the force required to stretch a hookersquos-law spring variesfrom 0 n to 516 n as we stretch the spring by moving one