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Demonstrating the effects of the angle of the sun's rays on the quantity of heat and light received by the earth
Bend a piece of cardboard and make a square tube 4 cm2 in cross section and 32 cm in length. Secure a piece of very stiff cardboard and cut a strip 23 cm long and 2 cm wide. Paste this to single side of the tube with 15 cm extending. Rest the end of the stiff cardboard on the table and incline the tube at an angle of about 25 degrees. Hold a flashlight or lighted candle at the upper end of the tube and mark off the area on the table that is covered by the light by the tube. Repeat the experiment with the tube at an angle of about 15 degrees. Repeat again with the tube vertical. Evaluate the size of the three spots and determine the area of each. Is the quantity of heat and light received from the sun greater when the rays are slanting or direct ?
An 8 kilogram mass resting on a frictionless horizontal surface is attached to a spring with a force constant of 50 Newtons per meter. If the velocity of the mass by the equi
Cannon of mass 5m (having a shell of mass m) is at rest on a smooth horizontal ground fires the shell with its barrel at an angle A with the horizontal at a velocity u relative to
discussion for magnetometer experiment
#what are practical examples of like and unlike parallel forces?#
Define Railway Tanker? A long, cylindrical tank is placed on a carriage that is able to slide without friction on. The mass of the empty tanker is M=180 kg at first the tank is
When a hard element is suspended from an axis and made to oscillate about that, then it is known as compound pendulum. C = Initial position of center of mass C' = Position of
A 2350-kg granite tombstone absorbs 2.8 x 107 J of energy from the Sun to change its temperature from 5.0°C at night to 20.0°C during an autumn day.
A 0.500 kg stone attached to the end of a string is whirled in a vertical circle of radius 1,20 meters. The center of the vertical circle is 1.50 meters above the ground. When the
What do you mean by spontaneous process? Give examples. What is path and state functions? Give examples.
project on logic gates
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