Your boss asked you compared to sound waves and determine which has a higher frequency wave a has a period of 4/102 and wave he has a period of 17 second what would you tell your boss

When a book falls from a shelf to the ground without anyone pushing on it, no work is done on the book. true or false

6–43 a food department is kept at 2128c by a refrigerator in an environment at 308c. the total heat gain to the food department is estimated to be 3300 kj/h and the heat rejection in the condenser is 4800 kj/h. determine the power input to the compressor, in kw and the cop of the refrigerator.

If an electric circuit is not grounded it is best to reach out and touch it to provide the ground a.true or b.false