Urgent! a wavelength is a) the number of waves per second b) the distance between two crests of a wave c) the distance from the crest to the trough of a wave d) the distance from the crest of one wave to the trough of the next wave

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.

Each line (unit) on the horizontal axis represents: 5 years 10 years 20 years all of the above

Explain the difference in reactivity of the elements based on their electron configurations.