Release a single molecule in an evacuated region and it will fall as fast as, and no differently from, a baseball released in the same region. Explain.

Solution 32E Step 1: Consider the mass of the molecule as “m”. If it is allowed to fall freely in an evacuated region, the only force experiencing is the gravitational force. 2 According to Newton’s universal law of gravitation, F = GMm/r Where, G - Gravitational constant M - Mass of earth (if the object is attracted by earth) m - mass of the molecule r - Distance between the earth and the molecule But we know that, force, F = ma from Newton’s 2nd law of motion. Where “m” is the mass of the molecule and “a” acceleration of the molecule under the influence of the force. So, replacing ‘F’ as ‘ma’ in the equation for gravitational force we get, ma = GMm/r 2 ‘m’ will cancel out on both sides and we get, a = GM/r which is a constant. So, the acceleration here...