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You are standing at your 2 You are standing at your 2.0 m tall window on the 5th floor of the apartment complex you live in. You see a rock fly straight upward past your window. It takes 0.2 seconds for the rock to travel the 2.0 m height of your window. How long do you have to wait before it becomes visible at the top of your window again? Rank Responses 1 2 3 4 5 6

You throw two rocks straight up into the air You throw two rocks straight up into the air. The first one reaches a maximum height H. The second has an initial velocity three times that of the first. The second rock reaches a maximum height of ___*H. Rank Responses 1 2 3 4 5 6

If you are traveling in a straight line at 35 m/s and an object travels at 30 m/s in a straight line opposite your direction, the relative velocity between you and the object is 65 m/s. True False

If you are traveling in a straight line at 0 If you are traveling in a straight line at 0.9c and an object travels at 0.2c in a straight line opposite your direction, the relative velocity between you and the object is 1.1c. True False