Draw the feynman diagrams for do → k-+ π+ and d0 → k+ + π. use cabbibo's theory to estimate the ratio of decay rates: in this case, where the q-values of the two decay modes are the same, the decay rates are proportional to the square of their matrix element.

Two point charges are separated by a certain distance. how does the strength of the electric field produced by the first charge, at the position of the second charge, change if the second charge is doubled? a. the field does not change b. the field strength decreases by half. c. the field strength doubles d. the field strength quadruples