Two 6.0-cm-diameter electrodes are spaced 5.0 mm apart. They are charged by transferring 1.0 * 1011 electrons from one electrode to the other. An electron is released from rest just above the surface of the negative electrode. How long does it take the electron to cross to the positive electrode? What is its speed as it collides with the positive electrode? Assume the space between the electrodes is a vacuum
Gravity Universal Gravitation ● Law of Universal Gravitation m1m2 ○ F=G r2 ■ G=6.673*10 −11 Example ● A typical bowling ball is spherical, weighs 16 pounds (7.3 kg), and has a diameter of 8.5 in (0.22 m). Suppose two bowling balls are right next to each other in the rack. What is the gravitational force between the two Universal Gravitation ● Gravitational Force is a vector ● Force exists between any two massive particles ● Force is proportional to the product of the masses and inversely proportional to the distance squared between the two particles ● Gravity is always attractive ● The gravitational force exerted by a spherical object on a particle out
