How much voltage must be used to accelerate a proton (radius 1.2 ×10−15m×10−15m) so that it has sufficient energy to just penetrate a silicon nucleus?
A silicon nucleus has a charge of +14e+14e, and its radius is about 3.6 ×10−15m×10−15m.
Assume the potential is that for point charges.

Consider the following position function. find (a) the velocity and the speed of the object and (b) the acceleration of the object. bold r left parenthesis t right parenthesisr(t)equals=left angle 6 t superscript 4 baseline comma 2 t cubed right angle6t4,2t3 for tgreater than or equals≥0

Difference between series and parallel circuits

Which best describes the first law of thermodynamics as compared to the second law of thermodynamics? a. the first law describes how thermal energy is conserved but not the direction it moves. b. the first law describes the direction thermal energy moves but not how it is conserved. c. the first law describes how thermal energy can be created but not how it can be destroyed. d. the first law describes how thermal energy can be destroyed but not how it can be created.