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Q1. Two 12-cm-diameter charged rings face each other, 17.0 apart. Both rings are charged to + 40.0. What is the electric field strength at the midpoint between two rings?
Q2. A horizontal desk surface measures 2.06 m x 1.73 m. If Earth's magnetic field has magnitude 0.494 mT and is directed 64.7° below the horizontal, what is the magnetic flux through desk surface?
Q3. A pipe open only at one end has a fundamental frequency of 258 Hz. A second pipe, initially identical to the first pipe, is shortened by cutting off portion of the open end. At this time, when both pipes vibrate at their fundamental frequencies, beat frequency of 12 Hz is heard. How many centimetres were cut off the end of second pipe? The speed of sound is 343 m/s.
If the magnetic field strength is 0.845 T, what is magnitude and direction of the magnetic force on the wire between the poles
A rifle with the barrel length of 62cm fires a 12g bullet with a horizontal speed of 380m/s. The bullet strikes a block of wood and penetrates to a depth of 14cm. What resistive force (assumed to be constant) does the wood exert on the bullet? How lo..
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Questions on blackbody, Infra-Red Detectors & Optic Lens and Digital Image.
The lows note emitted by stretched string has a frequency of 50Hz.how many outcome are possible between 40Hz and 170Hz.
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The rock strikes the ground a horizontal distance of 44 m from the base of the building. Assume that the ground is level and that the side of the building is vertical. How long did the rock take to hit the ground? Give your answer in seconds to two d..
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