[" 8] The gravitational force "],[" between two particles "],[" separated by a distance 'r' "],[" varies as * "],[[" 1] "(1)/(r)," 3] "r^(2)],[" 2] "r," 4] "(1)/(r^(2))]]

Force between two charges separated by a distance r varies as r^(2) ?

The force between two electrons separated by a distance r varies as

The force between two electrons separated by a distance r varies as

Write an expression for the gravitational force of attraction between two bodies of masses m_1 and m_2 separated by a distance r .

Suppose that the gravitational force between two bodies separated by a distance R becomes inversely proportional to R (and not as (1)/(R^(2)) as given by Newton's law of gravitation). Then the speed of a particle moving in a circular orbit of radius R under such a force would be proportional to

The gravitional force between two point masses m_(1) and m_(2) at separation r is given by F=k (m_(1)m_(2))/r^(2) The constant k

The gravitational force between two point masses m_(1) and m_(2) at separation r is given by F = k(m_(1) m_(2))/(r^(2)) The constant k doesn't

Assertion : The centres of two cubes of masses m_(1) and m_(2) are separated by a distance r. The gravitational force between these two cubes will be (Gm_(1)m_(2))/(r^(2)) Reason : According to Newton's law of gravitation, gravitational force between two point masses m_(1) and m_(2) separated by a distance r is (Gm_(1)m_(2))/(r^(2)) .