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Two wheels with rotational inertias of 1.0 kg m^2 and 1.5 kg m^2 are rotating on the same axis at 20 rads and 12 rads respectively, in opposite directions. If the wheels are suddenly coupled together, find the common angular speed of the wheels after being coupled.
Suppose you wish to whirl a pail full of water in a vertical circle without spilling any of its contents. what minimum speed is required
Consider an idealgas at 27 degrees C and1.00 atm pressure. Imaginethe molecules to be, on average, uniformly spaced, What is the length of an edge of each small cube
A friend of yours is loudly singing a single note at 410 Hz when racing toward you at 26.1 m/s on a day when the speed of sound is 339 m/s. What frequency does your friend hear if you suddenly start singing at 410 Hz.
a 1.0 m long metallic rod is rotated with an angular frequency of 400 rad s-1 about an axis normal to the rod passing
Two masses are connected by a light string passing over a light, frictionless pulley, Determine the speed of each object when the two pass each other
A 1.60 kg mass is attached to a light cord that is wrapped around a pulley of radius 6.80 cm, which turns with negligible friction. Find the moment of inertia of the pulley
A copper wire and an aluminum wire of the same length have the same resistance. What is the ratio of the diameter of the copper wire to that of the aluminum wire
a step down transformer produces a voltage of 6 v across the secondary coil when the voltage across the primary coil is
The drawing shows a person looking at a building on top of which an antenna is mounted. The horizontal distance between the person's eyes and the building is 96.3 m. How tall is the antenna
A satellite is orbiting the Earth at a distance of 3.31RE and with a speed of 3.59 km/s. With what speed would the satellite hit the Earth's surface if somehow it suddenly stopped and fell to Earth? Ignore air resistance.
An archer wishes to shoot an arrow at a target at eye level a distance of 56.5 m away. what angle should the arrow make with the horizontal
A 31000- kg railroad car with an open top rolls along a straight track with a speed of 4.91 km/h. It passes under a water fall that pours water straight into the car at a rate of 600 kg/s How much force is necessary to keep the car traveling at const..
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