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Places where friction occurs
Locate the places on several mechanical devices where parts rub together. Roller skates, pulleys and the wheels of toys often required oil. Try to find two similar bearings that required oil, such as those on a roller skate. Oil one and compare the ease with which it turns with the bearing that has not been oiled.
An electron beam projected along +X-axis, experiences a force because of a magnetic field along the +Y-axis. What is the direction of the magnetic field?
Describe how optical fibers used as hydrophones. Optical fibers are employed as hydrophones for sonar and seismic applications. Each hydrophone systems along with more than one
applications of statically induced emf and dynamically induced emf
the two point charges +10 nano coulomb and -20 nano coulomb are seperated by a distance 0.1m. calculate the neutral poiint along the line joining two charges.
Doppler effect (C.J. Doppler) Waves emitted through a moving object as attained by an observer will be blueshifted (compressed) if approaching, redshifted (elongated) if reced
Question Why are polarized sunglasses are effective? Answer: If it weren't for the fact that surfaces that produce glare have a tendency to absorb vertically polariz
The earth’s magnetic field: The earth acts as a magnet and the lines of force produced by it follow the pattern shown in the diagram below. If the Earth were completely symm
A positively charged particle is pitiful southward in a downward-directed uniform magnetic field. The magnetic force is the merely force if any acting on the particle. What is the
Inelastic Collision Collisions among objects are governed through laws of momentum and energy. While a collision occurs within an isolated system, the total momentum of the sys
Q State Joule's law of heating? The heat produced in a conductor is (i) Unswervingly proportional to the square of the current for a given R (ii) Unswervingly proportiona
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