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a golf ball of mass 0045 kg is hit off the tee at a speed of45 ms the golf club was in contact with the ball for 50
a 0145 kg baseball pitched at 390 ms is hit on a horizontalline drive straight back toward the pitcher at 520 ms if
two identical long wires of radius a 172 mm are parallel and carry identical currentsin opposite directions their
a beam of polarized light with an average intensity of 148 wm2 is sent through a polarizer thetransmission axis makes
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the electromagnetic wave that delivers a cellular phone call to acar has a magnetic field with an rms value of 150
time intervals measured with stopwatch typically have anuncertainty of about 02s due to human reaction time at the
two astronauts are 10 m apart in theirspaceship one speaks to the other the conversation is transmitted to earth via
the coefficient of static friction is 8 between the soles ofa sprinters shoes and the level track surface shes running
a horizontal spring is lying on a frictionless surface one end of the spring is attached to a wall whle the other end
a transformer has 3840 turns in the secondary the inputvoltage is 110v the output current is 65a the input current
two electric charges eagh of600mu c are placed at thecorners of the base of the square of the side s850m two
two identical resistors are connected in parallel across a 27-vbattery which supplies them with a total power of 65 w
a crate is pushed across a level floor by a constant forcein the direction of motion the force does 5 j of work on the
when skylab reentered the earths atmosphere on july 11 1979it broke into a myraid of pieces one of the largestfragments
a pi meson of mass mpi move with speed uin the positive y direction in frame s with parametersbetau uc and gammau 1 -
a person on a trampoline bounces straight upward with aninitial speed of 45 ms what is the persons speed when she
a motor has coils with a resistance of 26 omega and operates froma voltage of 240 v when the motor is operating at its
two billiard balls one heading north at 150 ms and a secondheading south at 100 ms collide head-on take the collision
a satellite of mass 4500 kg orbits the earthmass 60 x 1024 kg and has a period of 5800 sa find the magnitude of the
a gun is fired with angle of elevation 30 degrees the max height of the shell is 300 meters what was the muzzle speed
the punter on a football team tries to kick a football so thatit stays in the air for a long hang time if the ball is
when skylab recentered the earths atmosphere on july 1119790 it broke into a myraid of pieces one of the
a child pulls a friend in a little red wagon with constant speed the child pulls with a force of 16n for 100m and
the masses of the javelin discus and shot are 080 kg 20kg and 72 kg respectively and record throws in thecorresponding