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Simple gears
With a hammer and a medium-sized nail, make holes in the exact centres of various used bottle caps. Straighten the edges of the caps to make them as round as possible.
Lay two of the caps on a block of wood so that the tooth such as projections meshes together. Fasten them down with carpet tacks, but make sure that they still turn simply. Turn one of the caps and note the direction that the other turns. Add a third cap and note the direction that every turns.
COLLISION: "When two or more bodies come close to each other, so that there is some part of interaction among them, with or without the presence of external force, we say tha
Q. Collector current I c =20 mA and base current I b = 50 A. Find current gain β of a transistor. β = I C / I B = 20 X 10 -3 / 50 X 10 -6 = 400
Diffraction is the spreading of light that takes place when it pass through a thin slit or small hole or passes by an obstacle Answer: Diffraction is the spreading of any k
Explain about Atoms Atoms - having of a nucleus (central core) and orbiting electrons. Nucleus have protons (+ particles) and neutrons (neutral particles). Neutral atoms have
MANUFACTURING: The resistance element is used as a wire, made from special alloys, which have small low temperature coefficient and good stability against environmental c
Light with a wavelength of 454.5 nm passes by two slits that are 95.2 cm from a screen. The distance among the centers of the central band and the first-order band is 15.2 mm.
What are solid core fibers? This optics is cylinders made of diverse polymers and encased upon a transparent tube or sheath. As a standard are manufactured in various gauges or
This is the virtue of a material resists flow of electric current. It should be as high as possible. When material is subjected to an electrical pressure then will always be a flow
During a space launch, an astronaut typically undergoes an acceleration of 3 gs, which means he experiences an acceleration that is three times that of gravity alone. What wou
Q. Select the correct trajectory of the ball after it breaks? A ball is being whirled on a string. At the instant shown in figure, the string breaks. choose the correct traject
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