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Q1. Calculate the energy associated with the magnetic field of a 191 turn solenoid in which a current of 2.44. A produces a magnetic flux of 3.74 x 10-4 T • m2 in each turn.
Q2. A string under a tension of 43.5N is used to whirl a rock in a horizontal circle of radius 2.25 m at a speed of 20.3 m/s on a frictionless surface. As the string is pulled in, the speed of the rock increases. When the string is 1.00m long and the speed of the rock is 49.0 m/s, string breaks. What is the breaking strength, in newtons, of the string?
A small ball of mass 62 g is suspended from a string of length 37 cm and whirled in a circle lying in the horizontal plane. If the string makes an angle of 33? with the perpendicular, find the centripetal force experienced by the ball. The accelerati..
How many revolutions per minute would a 29 {rm m}-diameter Ferris wheel require to make for the passengers to feel "weightless" at topmost point.
Find out the direction of the train motion
Questions on blackbody, Infra-Red Detectors & Optic Lens and Digital Image.
Speedboat A negotiates a curve whose radius is 118 m. Speedboat B negotiates a curve whose radius is 270 m. Each boat experiences the equivalent centripetal acceleration. What is the ratio vA/vB of the speeds of boats.
A professor's office door is 0.90 wide, 2.00 high, 4.00 thick; has a mass of 30, and pivots on frictionless hinges. A "door closer" is attached to door and the top of the door frame. When the door is open and at rest, the door closer exerts the torqu..
How much energy is transferred to the water as heat
The coefficient of kinetic friction
The distance between the first and fifth minimum on a screen 60 cm behind the slits is 6.0 mm. What is the wavelength of the light used in this experiment.
A gun is fired vertically into a 2.00 kg block of wood at rest straight above it. If the bullet has a mass of 21.0 g and a speed of 198 m/s, how high would the block rise into the air after the bullet becomes embedded in it.
What is the total flux
What is speed of the resulting ball of clay
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