sally sizzle builds a circuit by connecting three resistors in parallel with a 9v battery. The current in the circuit is 3 amps. Sally wants to add another resistor in parallel to increase the current to 4.6 amps. What should the resistance of the new resistor be?

At a certain instant after jumping from the airplane a, a skydiver b is in the position shown and has reached a terminal (constant) speed vb = 52 m/s. the airplane has the same constant speed va = 52 m/s, and after a period of level flight is just beginning to follow the circular path shown of radius ρa = 2330 m. (a) determine the velocity and acceleration of the airplane relative to the skydiver. (b) determine the time rate of change of the speed vr of the airplane and the radius of curvature ρr of its path, both as observed by the nonrotating skydiver.