What is fluorescence?
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define rectilinear propagation of light?
a bullet of mass m travelling at velocity v has a kinetic energy of ½mv2 when it strikes a ballistic pendulum of mass 1000 grams. The kinetic energy of the twomasses moving together just after the moment of impact is about a thousand times smaller than ½mv2. What has most of the bullets initial kinetic energy beenconverted to?
Who first described how shock waves are formed?
If the moons orbit is inclined slightly relative to the earths orbit what effect does this have on eclipses?
What is meant by common potential?
What is a Diamond ?
If f equals electric force, and q and q (read as: q-prime) are the charges on two particles, the expression f is proportional to q times q prime divided by distancesquared is what law?
Why dies the earth move round the sun, and the moon round the earth ?
which has the highest elasticity?
Explain what is the measure of the force of gravity on an object?
how to figure cubic feet of concrete using English measurements?
What is the difference between emf & current