Dr. Lin’s patient has skin cancer. The patient worked out in the sun without lotion for many years. Cancer then developed. What type of risk factor does this scenario best represent? 1) environmental
2) biological
3) behavioral
4) genetic

Though it is technically her behavior (working out in the sun) that led to her getting skin cancer, I think the answer is 1) environmental because the sun's rays are an environmental factor that led to skin cancer. Hope this helps!

ek = (m.v2) / 2

v - velocity of system after the collision

m = m1 + m2

ek = (m1 + m2) v2/2

ek = (200 + 250) 2,32/2 = 450*5,29/2 = 1190,25 j

by: nicholas dooley