1. The combined resistance R of two parallel resistors and r2 is found using the following expression: R = 1/2 T₁+₂ Find R by using the approximate measurements: 1₁ = 293.8 and r₂ = 8.62 №. (№ is the symbol for ohms).

Two resistors have resistances R(smaller) and R(larger), where R(smaller) < R(larger). When the resistors are connected in series to a 12.0-V battery, the current from the battery is 1.30 A. When the resistors are connected in parallel to the battery, the total current from the battery is 10.6 A. Determine the two resistances. R(smaller) = R(larger) = i Units Units V

A sonar (Ultrasonic) sensor can be used in detecting obstacles around a robot.A robot equipped with a sonar sensor transmits a signal at T=0 seconds and receives aresponse at T = 93 milliseconds.Assuming that the speed of sound is (340m/s) calculate the distance between the robot and the potential obstacle in meters. Give your answer to an accuracy of 1 decimal place.Note: A millisecond is a thousandth (0.001 s) of a second.