How long will it take you to travel from the gate to baggage claim if you walk while riding on the moving sidewalk? Express your answer to two significant figures and include the appropriate units.

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