Opal is making a list of the uses of electromagnetic radiation. Which of the following should Opal NOT include in her list? A. A man using a microwave to boil water

B. A submarine using sonar to locate a ship

C. A girl using a remote control to change television channels

D. A hospital using an X-ray machine to take a picture of a broken bone

What tightening torque should be used for a hexagonal head screw (not split-bolt) on a 250 kcmil conductor?

Aplane flying horizontally at an altitude of 1 mile and a speed of of 500mih passes directly over a radar station. find the rate at which the distance from the plane to the station is increasing when it is 2mi away from the station.

Acertain half-reaction has a standard reduction potential e_red^0 = -0.94 v. an engineer proposes using this half-reaction at the cathode of a galvanic cell that e must provide at least 1.00 v of electrical power. the cell will operate under standard conditions. a. is there a minimum standard reduction potential that the half-reaction used at the anode of this cell can have? b. is there a maximum standard reduction potential that the half-reaction used at the anode of this cell can have?