While fishing on a lake, a fisherman notices ripples 0.32 m apart, and they are traveling with a speed of 1.2 m/s. When the ripples hit his bobber, what frequency
will it bob up and down with?

Please answer ASAP Will do brainlest

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