Acharging rc circuit controls the intermittent windshield wipers in a car. the emf is 12.0 v. the wipers are triggered when the voltage across the 125 mu or micro f capacitor reaches 10.0 v; then the capacitor is quickly discharged (through a much smaller resistor) and the cycle repeats. what resistance should be used in the charging circuit if the wipers are to operate once every 1.80 s?

Explain the difference between each pair of concepts. a. frequency and relative frequency b. percentage and relative frequency a. select the correct choice below. a. frequency is the total number of observations in a data set. relative frequency is the number of times a particular distinct value occurs. b. frequency is the number of times a particular distinct value occurs. relative frequency is the ratio of the frequency of a value to the total number of observations. c. frequency is the total number of observations in a data set. relative frequency is the ratio of the number of times a particular distinct value occurs to the frequency. d. frequency is the number of times a particular distinct value occurs. relative frequency is the ratio of the frequency of two different values.

The long handle on a rake is a(n) a. lever b. screw c. wedge d. inclined plane

Matter is needed to transfer thermal energy bya. conductionb. convectionc. radiation d. both a & b.