According to a rule-of-thumb, every five seconds between a lightning flash and the following thunder gives the distance to the flash in miles. assuming that the flash of light arrives in essentially no time at all, estimate the speed of sound in m/s from this rule. what would be the rule for kilometers?

Adisk with a radius of r is oriented with its normal unit vector at an angle q with respect to a uniform electric field. which of the following would result in an increase in the electric flux through the disk? check all that apply? a. increasing the area of the disk b. decreasing the given orientation angle of the disk c. decreasing the strength of the electric field d. increasing the given orientation angle of the disk, but not exceeding an angle of 90