Two identical conducting spheres, fixed in place, attract each other by an electrostatic force of -0.2848 N when separated by 50 cm, center-to-center. The spheres are then connected with a thin conducting wire. When the wire is removed, the spheres repel each other with an electrostatic force of 0.0608 N. What were the initial charges on the spheres? Since one is negative and you cannot tell which is positive or negative, there are two solutions. Take the absolute value of the charges and enter the smaller value here. Enter the larger value here
Finish the Hydrogen atom model we started in class (1 proton at center 1 electron at 59 pico-meter to the right of it)
1) Use the proton's E-field strength there (= 4E11 N/C) to find the Force applied to the electron
2) Use the electron's mass (0.911E-30 kg) to predict the electron's acceleration there (direction, too!)
3) Use the centripetal acceleration formula (?v²/r) to discover the electron's speed around the proton.
4) How long does that electron take to go all the way around the proton?