2. electron a falls from energy level x to energy level y and releases blue light. electron b falls from energy level y to energy level z and releases red light. which transition, from x to y or from y to z, has a greater energy difference? explain your answer and how you arrived at it. use a diagram of the electromagnetic spectrum.

Calculate the estimated density of each ball. use the formula d = m/v where d is the density, m is the mass, and v is the volume. record your calculations in table a of your student guide. given that the density of water is 1.0 g/cm3, make a prediction about whether each ball will float in water. record your prediction in table a. what is the estimated density of the table tennis ball? record your answer to the nearest hundredth

Measurements that have similar values are: a. usually accurate b. sometimes accurate c. always accurate d. never accurate

13,000. cm has how many significant figures?