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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
an 185 kg box initially at rest is pushed 263 m along a rough horizontal floor with a constant applied horizontal force
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
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
a 141 kg block is released at a 49 m height as shown the track is frictionless except for a portion of length 73 m the
suppose 700 g of hydrogen is separatedinto electrons and protons suppose also the protons are placed atthe earths north
we want to rotate the direction of polarization of a beam ofpolarized light through 90o by sending the beam throughone
while exploring a sunken ocean liner the principal researcherfound the absolute pressure on the robot observation
in a simple model of the hydrogen atom the electron revolves in acircular orbit around the proton with a speed of 16
a concave spherical mirror has a radius of 110cm anobjeect of height 15cm is placed 150cm from the mirrira where is the
the pressure inside a bottle of champagne is 45 atm higher thanthe air pressure outside the neck of the bottle has an
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
a 3500kg car traveling to the north isslowed down uniformly from an initial velocity of 20ms by a 6250nbraking force
a rubber ball is shot straight up from the ground with speed vosimultaneously a second rubber ball at heighth directly
astronauts on a distant planet throw a rock straight upward andrecord its motion with a video camera after digitizing
a supersonic jet flying at 145 ms is accelerated uniformly atthe rate of 231 ms2 for 200 sa what is the final velocityb
a lovestick young las wants to t hrow a bag of candy and love notesinto the open window of his girl friends bedroom 10
an explosion occurs at the end of a pier the sound reaches the other end of the pier by traveling through three media
a sailboat is initially moving at a speed of 4ms a strong windblows up and accelerates the boat forward with a
an atomic nucleus of mass m traveling withthe speed v collides elastically with a target particle of 3minitially at