Many children are uncomfortable around white lab coats. Specifically explain why this occurs in what a doctor or dentist could do to counteract this reaction and still wear a white lab coat

A100-watt light bulb radiates energy at a rate of 100 j/s. (the watt, a unit of power or energy over time, is defined as 1 j/s.) if all of the light emitted has a wavelength of 525 nm , how many photons are emitted per second?

Which position represents spring in the southern hemisphere? a) b) c) d)

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