Pulsed lasers used in science and medicine produce very short bursts of electromagnetic energy. if the laser light wavelength is 1062 nm (this corresponds to a neodymium-yag laser), and the pulse lasts for 34 picoseconds, how many wavelengths are found within the laser pulse?
how short would the pulse need to be to fit only one wavelength?

Sort the images based on whether there's a force of attraction or repulsion between the magnets shown. attraction repulsion

A1500 w electric heater is plugged into the outlet of a 120 v circuit that has a 20 a circuit breaker. you plug an electric hair dryer into the same outlet. the hair dryer has power settings of 600 w, 900 w , 1200 w, and 1500 w. you start with the hair dryer on the 600 w setting and increase the power setting until the circuit breaker trips. under what setting does the circuit breaker trip.

Use vsepr theory to predict the molecular geometry of the molecule hcn.