Kumar is producing the photoelectric effect by using red light. he wants to increase the energy of emitted electrons. based on the research of albert einstein, what is the best way for him to do this?

Determine the mass of fuel required for the expected energy consumption in the united states for the next ten years. energy use per person per year in the united states = 3.5 x 1011joules base calculations on current population of 310,000,000.

Which element forms an ionic bond with flourine? 1) fluorine 2) carbon 3) potassium 4) oxygen

Which part of earth’s surface receives the most direct rays from the sun? a) equator b) ocean c) poles d) mountains