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The cable lifting an elevator is wrapped around a 1.0 m-diameter cylinder that is turned by the elevator's motor. The elevator is moving upward at a speed of 2.0 m/s. It then slows to a stop, while the cylinder turns one complete revolution.
How long does it take for the elevator to stop?
What angle did the hawk make with the horizontal throughout its descent? For how long did the mouse enjoy the free fall.
Pat builds a track for his model car out of wood. The track is 14.00 cm wide, 3.00 m long, Locate the horizontal coordinate of the center of gravity of this track
A beam of parallel rays from a 24 MHz citizens band radio transmitter passes between two electrically conducting (hence opaque to radio waves) buildings located 45.00 m apart. What is an angular width of the beam as it emerges from between the buildi..
A plane mirror:
A professor shipwrecked on Hooligan's Island decides to build a telescope from his eyeglasses and some coconut shells. Which lens should he use as the objective
A thin film of acetone (n = 1.25) coats a thick glass plate (n=1.50). White light is incident normal to the film. In the reflections, fully destructive interference occurs at 500 nm and fully constructive interference at 542 nm. Calculate the thickne..
Normal atmospheric pressure at sea level is generally considered to be equal to the pressure exerted by a column of mercury 760mm high. Calculate the corresponding pressure in inches and in Pascals
The pulmonary artery, which connects the heart to the lungs, has a radius of 2.6 mm and is 8.4 cm long. what is the speed of the blood in this artery
a tiny sphere of mass 7.30 microg and charge 2.80 nc is initially at a distance of 1.74 microm from a fixed charge of
A grindstone of radius 4 m is initially spinning with an angular speed of 8 rad/s. The angular speed is then increased to 10 rad/s over the next 4 seconds. Imagine that the angular acceleration is constant.
Calculate the mutual inductance of a solenoid 25 cm long of radius 1.5 cm with 500 turns, and a single loop of radius 3.0 cm centered on the solenoid
For the real or imaginary nucleus of 70X170, find the net electrical charge of the nucleus and the approximate radius of the nucleus
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