An electron has a speed of 0.750c. (a) Find the speed of a proton that has the same kinetic energy as the electron. (b) What If? Find the speed of a proton that has the same momentum as the electron.

9/22/16 Physics 133—Dr. Srinivasan 4 Fundamental Forces: 1) Strong a. The force -15t holds the nucleus together b. Range: 10 m, the diameter of a medium sized nucleus 2) Electromagnetic 1 a. Strength: of the strong force 137 b. Fundamental property: charge c. Range: infinite d. Repulsion is the surest test for electrical interaction 3) Weak a. Occurs in neutrino interaction b. Range: 10 , 0.1% the diameter of a proton 1 -6 c. Strength: 1,000,000 (10 ) of the strong force 4) Gravity a. Strength: 6 x 10-3of the strong force b. Range: infinite Cha