Establish Keplar’s 3rd law from Newton law of gravitation.

Write down Newton's law of gravitation.

Establish Avogadro's law.

Kepler's third law states that square of period of revolution (T) of a planet around the sun , is proportional to third power of average distance between sun and planet ? i.e., T^2=Kr^3 here K is constant. If the masses of sun and planet are M and m respectively, then as per Newton's law of gravitation, force of attraction between them is F=(GMm)/(r^2) here G is gravitational constant The relation between G and K is described as

State Newton's second law of motion.

Coulomb’s law for electrostatic force between two point charges and Newton’s Jaw of gravitational force between dependence on the distance between the charges/ masses. Compare the strength of these forces by determining the ratio of their magnitudes : for an electron and a proton and

Coulomb’s law for electrostatic force between two point charges and Newton’s Jaw of gravitational force between dependence on the distance between the charges/ masses. Compare the strength of these forces by determining the ratio of their magnitudes : for two protons.

Mention Newton's first law of motion.

Mention Newton's third law of motion.

Establish Ohm's law from the concept of drift velocity of free elctrons.