Question

A wooden log weighs 30 kg. If the entire log is made up of electrons, then find the number of electrons in the wooden log.

Answer 1

Explanation:

Given A wooden log weighs 30 kg. If the entire log is made up of electrons, then find the number of electrons in the wooden log.

We know that weight of one electron = 9.1 x 10^-31 kg

Weight of n electrons will be 30 kg

Number of electron in log = total mass / mass of each electron.

Therefore required number of electrons will be (30 / 9.1) x 10 ^31

                                                                        = 3.296 x 10^31