A sticky hockey puck slides along a frictionless, horizontal ice surface at 75 m/s in the +x direction. It collides with a second sticky puck originally sliding at 25 m/s in the -y direction. They collide totally inelastically. If the first puck has a mass equal to twice that of the second, what is the angle of their final velocity vector below the +x direction?
A. 37 degrees
B. 9.5 degrees
C. 49 degrees
D. 42 degrees
E. 34 degrees
B. 9.5 degrees
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The most important fact about a cluster of stars that makes them useful for studying star formation is that
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