Convert 392 K into Celsius. Your answer should have three significant figures (round your answer to the nearest whole number).
Use −273∘C for absolute zero.

What happened to the amount of carbon dioxide in the atmosphere from 2010–2017?

Light waves travel than sound waves.

Which of the following is an example of how telecommunication devices people do their jobs? a.) a security guard checks the time using a digital watch. b.) a banker does some quick math using a solar calculator. c.) a nurse uses a digital thermometer to take a patient’s temperature. d.) a construction worker reports in to his office using a cell phone.