You center your telescope on a distant nebula and analyze the light by sending it through a spectrometer. There is a star in the nebula, heating the nebula gases. You notice the electromagnetic radiation from the hot gas is a line emission spectrum. From analyzing the line emission spectrum, what can you most readily tell about the nebula?

Which transition by an electron will release the greatest amount of energy? oa ob oc od

Visualize the problem and identify special cases first examine the problem by drawing a picture and visualizing the motion. apply newton's 2nd law, ∑f⃗ =ma⃗ , to each body in your mind. don't worry about which quantities are given. think about the forces on each body: how are these consistent with the direction of the acceleration for that body? can you think of any special cases that you can solve quickly now and use to test your understanding later? one special case in this problem is if m2=0, in which case block 1 would simply fall freely under the acceleration of gravity: a⃗ 1=−gj^.

State the below theories and give the name of the writer of the theory 1. wave theory 2. quantum theory 3. corpuscular theory 4. electromagnetic theory