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a 30 kg mud ball drops from rest at a height of 10 m if the impact between the ball and the ground lasts 080 s what is
a shot put is released with a horizontal velocity of 12 ms and stays in the air for 20 seconds at what angle with the
in a college parking lot the number of ordinary cars is larger than the number of sport utility vehicles by 857 the
you are standing on the royal gorge bridge which is 284 meters from the water below you throw a baseball straight up at
a lumberjack mass 98 kg is standing at rest on one end of a floating log mass 290 kg that is also at rest the
a girl throws a rock horizontally with a velocity of 10 ms from a bridge it falls 20 m to the water below how far does
four identical metallic objects carry the following charges 54 microc 54 microc -70 microc and -16 microc the objects
the mass of the h2 molecule is 33x10-24 g if 1023 hydrogen molecules per second strike 20 cm2 of wall at an angle of
the angular momentum of a flywheel having a rotational inertia of 0125 kgm2 decreases from 30 to 20 kgm2s in a period
a net torque of 36nm acts on a wheel rotating about a fixed axis for 6 s during this time the angular speed of the
a disk with a 10-m radius reaches a maximum angular speed of 18 rads before it stops 30 revolutions 220 rad after
a student sits on a stool that is free to rotate about a vertical axis he holds his arms extended horizontally with a
a wheel rotates with an angular acceleration given by epsilon4at3-3bt2 where t is time and a and b are constants if the
two objects are thrown from the tope of a 10m tall builing the first objects is thrown upwards with a velocity of 15 ms
a straight wire of mass 200 g and length 15 m carries a current of 2 a it is suspended in mid-air by a uniform
a hydraulic system uses a large piston with a 1-m radius and a small piston with a 010-m radiusa if 100-n force is
martha travels 25 miles north on her bike then she travels 25 miles due east what is marthas
you use a spring k89nm to pull a 45kg box across the rough floor mu013 the spring stretches 3m what is the horizontal
a freight car with a mass of 10 metric tons is rolling at 108 kmh along a level track when it collides with another
an explosion breaks an object originally at rest into two fragments one fragment acquires twice the kinetic energy of
kim has a metal casting company which makes commemorative coins she has 012 cubic meters of silver which she needs to
the wheels of an automobile are locked as it slides to a stop from an initial speed of 300 ms if the coefficient of
a pendulum has a mass of 37 kg a length of 17 meters and swings throughhalfarc of 281 degrees what is its amplitude to
a very long solenoid with a circular cross section and radius r 810 cm with n 150e 4 turnsm has a magnetic energy
a 1000 kg car is moving at a constant speed of 7ms when it hits the back bumper of another car with 1200 kg of mass