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an electric motor turns a flywheel through a drive belt that joins a pulley on the motor and a pulley that is rigidly
a discus thrower accelerates a discus from rest to a speed of 249 ms by whirling it through 122 rev assume the discus
a string stretched between two fixed posts forms standing wave resonances at 350 hz and 420 hz what is the greatest
a copper cylinder and a brass cylinder are stacked end to end as in the drawing each cylinder has a radius of 030 cm a
a 340kg piano slides 35m down a 29degree incline and is kept from accelerating by a man who is pushing back on it
a disk 796 cm in radius rotates at a constant rate of 1 150 revmin about its central axisa determine its angular speed
for two stars of the same surface temperature how does their relative luminosity depend on their
a 1200-kg car rolling on a horizontal surface has speed 65kmh when it strikes a horizontal coiled spring and is
the drawing shows a 182-kg crate hanging from the end of a steel bar the length of the bar is 008 m and its
a long solenoid has n turns per unit length and is carrying a certain current i an electron moves with speed v inside
the voltage across an air-filled parallel-plate capacitor is measured to be 1100 v when a dielectric is inserted and
light with an initial intensity of s0 passes through a vertical-oriented polarizer and then passes through a second
a stone has a mass of 900 x 10 -3 kg and is wedged into the tread of an automobile tire the coefficient of static
if a star has a peak emission in the infrared par of the spectrum is it hotter or cooler than the sun what color would
a 722-kg car stopped at an intersection is rear-ended by a 1620-kg truck moving with a speed of 145 ms if the car was
a heavy-duty stapling gun uses a 0168 kg metal rod that rams against the staple to eject it the rod is attached and
two tugboats pulls a disabled supertanker each tug exerts a constant force of 180x106 n one of them at an angle of
starting from rest a basketball rolls from the top to the bottom of a hill reaching a translational speed of 51 ms
use conservation of energy to determine the angular speed of the spool shown in the figure below after the 300 kg
multiple-concept example 10 provides one model for solving this type of problem two wheels have the same mass and
the fan blades on a jet engine make one thousand revolutions in a time of 818 msa determine the period in secondssb
a screen is placed 470 cm from a single slit that is illuminated with light of wavelength 682 nm if the distance
a solid horizontal cylinder of mass 80 kg and radius 130 m rotates with an angular speed of 650 rads about a fixed
a thin film of oil n 112 is located on smooth wet pavement when viewed from a direction perpendicular to the pavement
two different balls are rolled without slipping toward a common finish line their angular speeds are shown to the right