Earth’s mass is 5.98 x 10^24 kg and it is located 150 million kilometers from the Sun. Calculate the mass of the Sun in [x10^30 kg]

Density of salty water as compared to the density of pure water is(a) is less(b) is always equal(c) is always more(d) may be less or more

Suppose you have three polarizing filters, with the second at an angle of 42∘ to the first and the third at an angle of 90∘ to the first. by what perfect will the original intensity of unpolarized light be reduced to after passing through all three filters?

The movement of electrons between atoms is called an