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how much time is required to raise the temperature of the water from
A family comes home from a long vacation with laundry to-do and showers to take. The water heater has been turned off during the vacation. If the heater has a capacity of 50.0 gallons and a4800 W heating element, how much time is required to raise the temperature of the water from 20.0°Cto 55.0°C? Assume that the heater is well insulated and no water is withdrawn from the tank during that time.
When the two simple harmonic motions have dissimilar amplitudes and also vary in phase but they have the similar periodic time : The resultant curve may be obtained graphically
what does light does
What is the speed of a 232 kg satellite in an approximately circular orbit 645 km above the surface of Earth?
a ball is dropped from a bridge 122.5m high. after the ball has been falling for2 sec another is thrown straight downwards after it. the initial velocity of the ball is such that
Twin paradox: One of the most popular "paradoxes" in history, predicted trhough A. Einstein's special theory of relativity. Take two twins, born on the similar date on Earth.
Minimum amount of light for low vision If 90 photons enter the eye ,10 or less are actually absorbed in photoreceptors. About 3% are reflected at the surface of the corne
Working of a galbanometer?
Show that average value of Poynting vector for a plane e-m wave is 1/2 √μ/e XH 2 .
Internal Resistance of Circuit: As mentioned earlier in the section on batteries, every source of electricity, such as a cell or generator has resistance to current flow called
Which is factual of the light from an actual physical object whose image is formed by a single thin lens? Ans: That's what light perform when it leaves a point on an objec
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