Before you touch a wire in an appliance, how should you make sure that it is not energized? a. by touching the grounded and black wires and watching for a spark b. by checking for voltage with a neon tester c. by testing for leakage with an ohmmeter d. by plugging in the line cord and closing the appliance switch

you already know many words that you use every day as part of your writing and you probably also know that certain words fit better in certain situations. tonight she will , sit) down and , write) a cover letter to when writing, you need to choose the correct word according to its spelling and

the answer to your question would be something called hertz. the unit of measurement called a hertz, which is one cycle per second, is used to measure clock speed. within one cycle, your computer processes, refreshes, or updates itself to the changes that it is going through. in the case of computer clock speed, one hertz equals one tick per second. the clock speed of computers is usually measured in megahertz (mhz) or gigahertz (ghz)