Acar with a mass of 1,200 kilograms is moving around a circular curve at a uniform velocity of 20 meters per second. the centripetal force on the car is 6,000 newtons. what is the radius of the curve?

As changes in energy levels of electrons increase, the frequencies of atomic line spectra they emit

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.

Temperature is defined as a. the equivalent of heat. b. a measure of the average kinetic energy of the individual atoms or molecules composing a substance. c. how hot or cold it is. d. the total kinetic energy of the atoms or molecules composing a substance. e. none of the above is correct.