The atomic radius of a hydrogen atom is 53 pm. The radius of a golf ball is 21.35 mm. If the hydrogen atom was blown up to the size of the golf ball, how big would the radius of the golf ball be if the original size ratio is maintained

no. dot product   =0 when vecs at right angles

jupiter is the largest planet in our solar system, having a mass and radius that are respectively, 318 and 11.2 times that of earth. suppose that an object falls from rest near the surface of each planet and that the acceleration due to gravity remains constant during the fall. each object falls the same distance before striking the ground. determine the ratio of the time of fall on jupiter to that on earth.