Find the intensity of an electromagnetic wave having a peak magnetic field strength of 4.00×10^−9T.

The electronic structure or chlorine is 2.8.7 what is the electronic structure of fluorine?

Aturntable that spins at a constant 74.0 rpm takes 3.10 s to reach this angular speed after it is turned on. find its angular acceleration (in rad/s2), assuming it to be constant, and the number of degrees it turns through while speeding up.

The molecular weight of oxygen gas (o2) is 32 while that of hydrogen gas (h2) is 2. prove that under same physical conditions, the velocity of sound in hydrogen is four times that in oxygen