What is meant by reflection of waves?
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Explain how many more times louder is 70 decibels than 10 decibels?
Why is a ship loaded with a ballast(bottom load) ?
Which element has the simplest absorption spectrum?
Why is water in kept in ?gharas? in summer ?
generaly what is physics!
What is Convex lens ?
What secondary color of light is produced by mixing the primary colors of red and blue?
Why does water boil at 100oC ?
what does quantity of matter in an object denote
a car is travelling at 72kmph, and if that car slows down to 60kmph it takes an extra 1 hour to cover that same distance. at 72kmph, how long did it take for the car to cover that distance?
Explain what does hull speed mean?
the department of energys b-factory at the stanford linear accelerator lab is designed to collide electron and positron beams of unequal energies and producemillions of these particles, which are commonly called?