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5. A picture frame is knocked off a wall and accelerates uniformly to the floor. If the picture was hung 2.5 m above the floor

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5. A picture frame is knocked off a wall and accelerates uniformly to the floor. If the picture was hung 2.5 m above the floor and there is no air resistance, which equation would you use to determine how long it takes the picture frame to reach the floor? a. Ad = 2 At b. V. = Vit dy At C. Ad = V. Alt - do At d. v. = v. + 20 Ad 6. A squirrel runs 10.0 m [N] and then turns and runs 8.0 m [W]. What is the squirrel's displacement? a. 12 m [W 280 N] b. 23 m [W 280 N] c. 23 m [W 620 N] d. 12 m [W 380 N] Which of the following will experience the largest amount of air resistance? a. a piece of paper rolled into a tube b. the broad side of a flat piece of paper c. a piece of paper folded into a thin sliver d. a crumpled piece of paper 8 If you launch a ball horizontally out of a window at the same time you drop a ball, which of the following things will happen? a. The ball launched horizontally will slow down. b. The ball that was dropped will hit the ground first. c. Both balls will fall at the same rate. d. The ball that was launched horizontally will hit the ground first. 9. What is the approximate cost of operating a 80 W light bulb for 3.0 h per day for 2 weeks, if theprice of electrical energy is 64/kWh? a. $20.00 b. $5.00 c. 20c d. 50 other is 15 N east

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