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a thin rod is rotating at anangular velocity of 7.0rad/sec about an x axis that isperpendicular to the rod at its center. The rod is hinged attwo places, one quarter of the length from each end. Without theaid of external torques the rod suddenly assumes an u shape withthe arms of the u parallel to the rotation axis What is the angular velocity of the rotating u?
At what speed do a bicycle and its rider, with a combined mass of 100-kg, have the equal momentum as a 1500 kg car travelling at 5 ;{ rm m}/ {rm s}.
Flux and nonconducting shells. A charged particle is suspended at the center of two concentric spherical shells that are very thin and made of nonconducting material. Figure (a) shows a cross section. Figure (b) gives the net flux ? through a Gaussia..
A 350 g piece of metal at 100C is dropped into a 100 g aluminum cup containing 500 g of water at 15C. What is the specific heat of the metal
An iceboat is gliding on a frozen lake with no propulsive force being applied. Does the horizontal momentum of the boat Change
To focus a camera on objects at different distances, the converging lens is moved toward or away from the film, Over what distance must the lens be movable
A parallel-plate capacitor has a surface charge density = 8.0 10-5 C/m2 and an electric field E = 2.7 106 V/m in the material between the plates.
question consider a rectangular loop of wire 6.3 cm by 8.2 cm in a uniform magnetic field of magnitude 1.7 t. the loop
An unstretched spring is 13.0 cm long. When you hang an 845 g weight from it, it stretches to a length of 16.0 cm. What is the force constant (in N/m) of this spring
What is the period of a simple pendulum with mass of 5 kg displaced 4o with a string length of 0.45 m near the Earth's surface
A 4m long wire with thickness 5mm carries a current 0.4 A. A second identical wire of equal length and thickness is parallel and carries 0.6 A in the same direction. The two wires are separated by 12 cm as measured from the outside of the wire.
What gauge pressure must a pump produce to pump water from the bottom of the Grand Canyon (elevation 730 ) to Indian Gardens (elevation 1370 )
A certain lightbulb has a tungsten filament with a resistance of 18.0 when cold and 138 when hot. Find the temperature of the hot filament
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