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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
An ice-skater with a moment of inertia of 1.1 kg/m2 starts to spin with her arms extended. After 25 s, she has an angular velocity of 15 rev/s. What is the net torque acting on
Mass energy relation - The total energy of a body is the sum of its kinetic energy and rest mass energy. Particle having rest mass zero always move with the velocity of light.
Their resistivity is very low and temperature coefficient of resistance is not constant. These are materials with unfilled or overlapping energy bands. Current carriers here are fr
Graviton has spin equal 2, how much of transfer motion of CPH changes to keep its spin equal 2? Answer; since we know in quantum mechanics primary spin defined by;
Write down the Maxwell's electromagnetic wave equations both in differential form.
A transformer takes a current of 1A when its primary is connected to a 300V, 50Hz supply, the secondary being on open-circuit. If the power absorbed is 120watts, Determine
How a CPH products? Answer; no time has passing of a CPH. Thus, CPH exists and never decay.
Electricity: The flow of electron is known as electricity.
An alternating voltage is triangular in shape, rising at a constant rate to a maximumof 300V in 8ms and then falling to zero at a constant rate in 4ms. The negative half cycle
Question 1. How X-rays are produced? Describe the properties of X-Rays? 2. Describe the half wave & full wave Rectifications employed in an X-ray tube? 3. Discuss the med
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