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two cars collide at an intersection car with a mass of 1900 kg is going from west to east while car b of mass 1300
a constant force of 15 n in the negative y direction acts on a particle as it moves from the origin to the point 4i 3j
a 1720-hz pure tone is played on a stereo in an open field a per- son stands at a point that is 4 m from one of the
a point charge q is placed inside a hollow metal sphere of radius r the sphere is hold no net charge what is voltage on
a meter stick is supported on a fulcrum at the 35 cm mark a 070 kg object is hung from the zero end of the meter stick
a truck is traveling at 130 ms down a hill when the brakes on all four wheels lock the hill makes an angle of 15 deg
a proton is traveling due west with a speed of 400 x 105 ms and enters a magnetic field of 500 x 10-5 t directed at 300
the label on a candy bar says 440 calories assuming a typical efficiency for energy use by the body if a 73 person were
a flywheel is a solid disk that rotates about an axis that is perpendicular to the disk at its center rotating
a jet transport has a weight of 243 x 106 n and is at rest on the runway the two rear wheels are 160 m behind the front
a 0302-m-thick sheet of ice covers a lake the air temperature at the ice surface is -160 degc in 590 minutes the ice
a circular loop of wire is in the plane of the paper the south pole of a bar magnet is being moved from a position in
an electric current in a conductor varies with time according to the expression it 5 100 sin 120pt where i is in
a star rotates in a circular orbit about the center of its galaxy the radius of the orbit is 15 x 1020 m and the
an object with a height of 292 cm is placed 368 mm to the left of a lens with a focal length of 350 mm what is the
a beach ball filled with air is pushed about 1 m below the surface of a swimming pool and released from rest which of
a round pipe of varying diameter carries petroleum from a wellhead to a refinery at the wellhead the pipes diameter is
two ships are 335 m aparts from each other are shooting cannons at each other both ships cannons are 30 m above the
you spray your sister with water from a garden hose the water is supplied to the hose at a rate of 0147 liters per
bowling balls can be made from a variety of substances and are required to have a circumference of roughly 278 inches
a 9 kg mass slides to the right on a surface having a coefficient of friction 037 as shown in the figure the mass has a
a railroad car fo mass m2000kg and speed v0 850ms collides and couples to another car of equal mass and initially at
a wheel rotates with a constant angular acceleration of 310 rads2 assume the angular speed of the wheel is 155 rads at
you observe that a solid cube of some material floats on the surface of an oil puddle at a service station with 763 of
a car approaches the top of a hill that is shaped like a vertical circle with radias r550m what is the fastest speed a