Why did j. j. thomson reason that electrons must be a part of the atoms of all elements? (1 point) cathode rays are negatively charged particles. cathode rays can be deflected by magnets. an electron is 2000 times lighter than a hydrogen atom. charge-to-mass ratio of electrons was the same, regardless of the gas used.

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.