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a 5040 kg keg of beer slides upright down a 305 m long plank leading from the back of a truck 116 m high to the ground
a transparent material has indices of refraction given by nviolet 16231nred 16111 determine the angular spread of
while rolling marbles on a horizontal window sill a youngster accidentally shoots one at 30 ms out the open window he
a lit firecracker is shot straight up at 50 ms how high is it above ground level 5 s later when it explodes how fast is
a 22 m long uniform plank is supported by two bathroom scales one at either end initially the scales each read 1000 n a
a block of mass m1 11 kg is held at the top of a frictionless inclined plane at point a 6m above the ground a second
a dietary calorie is actually a kilocalorie note that by convention a capital c is always used to indicate a dietary
a typical wall outlet voltage is 120 volts in the united states personal mp3 players require much smaller voltages
you need to produce a solenoid that has an inductance of 305 h you construct the solenoid by uniformly winding 107 m
you wind a small paper tube uniformly with 197 turns of thin wire to form a solenoid the tubes diameter is 801 mm and
a roller coaster car is at the top of a loop-de-loop and is at the point where it is upside down not ignoring air
the earth moves in a very nearly circular path around the sun over the course of one year express the speed of the
a car travels at 900kmh for a distance of 500m calculate the angular speed and the number of rotations of the tires if
in astronomy a parsec pc is dened as the distance at which an object with a size of 1 astro- nomical unit au would
a 100 kg mass is acted upon by a force given by 16 5x -4x2i where x is measured in metersa how much work is done by
a block of wood of mass m1 100 kg slides to the right on a frictionless horizontal table with a speed of 3000 ms it
the drivers of two carss in a demolition derby are at rest 100 m apart a clock on the billboard reads 121700 at the
a fully charged capacitor with a voltage of 120 v is discharged through a resistora what is the voltage across the
the magnetic field produced by an mri solenoid 27m long and 17m in diameter is 19t find the magnitude of the magnetic
slamming on the brakes a driver decelerates her car from 250 ms to 15 ms in 35 s find her average speed assuming the
an astronaut who is repairing the outside of her spaceship accidentally pushes away a 967-cm-long steel rod which flies
the drill bit of a variable-speed electric drill has a constant angular acceleration of 315 rads2 the initial angular
a flywheel has a constant angular deceleration of -236 rads2a find the angle through which the flywheel turns as it
two people start at the same place and walk around a circular lake in opposite directions one has an angular speed of
when jumping straight down you can be seriously injured if you land stiff-legged one way to avoid injury is to bend