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Demonstrating how the angle of the sun's rays changes from day to day at the same hour
Cut a 1-cm round hole in a piece of paper or cardboard. Place this in a south window of your classroom where the sun's rays will shine by the hole and strike a piece of white paper on the floor, the table or window sill. Draw the outline of the spot where the beam of light strikes the paper. Write the date and hour inside the outline. Repeat this on succeeding days at exactly the similar hour
a cat climbs 20 m directly up a tree. what is the horizontal component of the cat''s displacement
Determne the magnetic field due to a finit sraight wire of length 2l, carrying a steady current i. The point of interest P is l distance away from the middle point of wire O. So
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distinguish feature of litearay writing
What is free fall acceleration? On earth free fall acceleration is 9.81 meters per second per second or 32.2 feet per second per second, not containing air resistance. Aroun
The physical value which does not depend on any other physical quantity is known as a fundamental physical quantity like length; mass and time are known as fundamental units.
Displacement and Distance A simple animation showing the difference among the distance and the displacement Distance and displacement are two quantities which may seem to mean
What is an asteroid, comet, dwarf planet with respect to their mass, moment of inertia and dimension? Ans) Dwarf Planet is lighter,smaller than a planet ( Pluto ).They usually a
What is the Law of Machines? Machines which are used to lift a heavy load are governed by the "Law of machines", which says that the effort to be applied on the machine (p) is
maximum 20 mA current can flow through a zener diode.if zener voltage 6V how much resistance will have to be applied in series with the zener diode for 9V supply? calculate load cu
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