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a 40-kg projectile leaves a 2000-kg launcher with a speed of400 ms what is the recoil speed of the
a 2100-kg truck traveling north at 41 kmhr turns east andaccelerates to 60 kmha what is the change in the trucks
suppose traffic investigators determined from the skid marks that two cars came to rest with a displacement of 972m at
a 1100kg auto is at rest at a traffic signal at theinstant the light turns green the auto starts to move with aconstant
a 500-g bullet is shot through a110-kg wood block suspended on a string200 m long the center of mass of the block rises
a lumberjack m 98 kg is standing at rest on one end of afloating log m 230 kg that is also at rest the lumberjackruns
electromagnetic waves are only produced by accelerating charges not by charges moving at aconstant speed without
an auto race is held on a circular track a car completes onelap in a time of 215 seconds with an average tangential
an explosion breaks an object into two piecesone of which has 15 times the mass of the other if 7500 j werereleased in
a source emits sound wavesof frequency 200 hz which move through still air at 340 ms the source moves with a speed of
a car with a mass of 1500kg moving at 40ms comes to a stop in8 secondswhat is the change in momentum of the carwhat is
a 420 kg seal at an amusement part slides from restdown a ramp into the pool below the top of the ramp is 175mhigher
two railroad cars each of mass 6500kg and traveling 94 kmh in oppositedirections collide head-on and come to rest how
a 1150 kg car rolling on a horizontalsurface has speed v 50 kmh when it strikes a horizontalcoiled spring and is
an object is located 140 cm in front of a convex mirror the image being 750 cm behind the mirror a second object twice
a current of 300 ma is maintained ina single circular loop with a circumference of 240 m a magnetic field of 0590 t is
the figure below shows a circuit with a battery and 3resistors the resistors have values of 4 omega 3omega and6omega as
a spring with spring constant k stands vertically and a massm is placed on top of it the mass is gradually lowered
amtracks high speed train the acela utilizes tilt of thecars to negotiate curves the angle of tilt is adjusted so that
a 0450 kg particle slides arounda horizontal track the track has a smooth vertical outer wallforming a circle with a
a candle is placed 160 cm in front of a convex mirror when the convex mirror is replaced with a plane mirror the image
a race car starts from rest and drives as fast as possible over thel shaped course on the board x120m r35m the car
when an object is placed 690 cm from a certain converging lens it forms areal image when the object is moved to 370 cm
a 25g object moving to the right at 20 cms overtakes andcollides elastically with a 100g object moving in the
jupiter is the largest planet in the solar system having a massand radius that are respectively 318 and 112 times that