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A solid disk rotates in the horizontal plane at an angular velocity of 0.038 rad/s with respect to an axis perpendicular to the disk at its center. The moment of inertia of the disk is 0.11 kg ·m2. From above, sand is dropped straight down onto this rotating disk, thus that a thin uniform ring of sand is formed at a distance of 0.40 m from the axis. The sand in the ring has a mass of 0.50 kg. After all the sand is in place, what is the angular velocity of the disk?
A train moving at a constant speed of 66.0 km/h moves east for 43.0 min, then in a direction 56.0° east of due north for 16.0 min, find the average velocity of the train during this run
During an etiquette class, you walk slowly and steadily at 0.20 {\rm{ m/s}} for 2.5 {\rm m} with a 0.75 {\rm kg} book balanced on top of your head
a 35.0 cm diameter coil consists of 30 turns of circular copper wire 2.0 mm in diameter. a uniform magnetic field
A 4.98-kg pendulum bob, at a height of 0.720 m above the floor, is released and swings down to the ground, Find how high up the incline the block will slide
Light of wavelength 589 nm is used to view an object under a microscope
If an enclosed volume of ideal has is heated, raising its temperature from 10 c to 20 c, by what factor does the pressure change
Compute the net electric flux through the hull of the submarine. Is the number of electric field lines leaving the submarine greater than, equal to, or less than the number entering it?
an electron starts from one plate of a charged closely spaced vertical parallel plate arrangement with a velocity of
A swimmer, capable of swimming at a speed of 1.07 m/s in still water (i.e., the swimmer can swim with a speed of 1.07 m/s relative to the water), How long does it take the swimmer to cross the river
a hockey player hits a .1 kg puck initially at rest on the ice with a force of 160 n for a period of .024 s. what is
1 a person standing on edge of cliff throws 3 identical rocks with same speed. rock x is thrown vertically upward rocky
A certain automobile engine is performing work at the rate of 33900 W (45 hp) with an efficiency of 27%
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