The kinetic energy transfers from the moving ball to the non-moving ball.
Answer:
k=1/3; k=-2/5
Step-by-step explanation:

Answer:
1/18
Step-by-step explanation:
Ⓗⓘ ⓣⓗⓔⓡⓔ
Well, 4/4=1 and 72/4=18.
Hence, 4/72=1/18
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X and Y are vertical angles, which mean they are the same.
The 3 inside angles need to equal 180 degrees, so solve for X:
X = 180 - 35 - 65 = 80 degrees.
Y = 80 degrees.