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Info Sheet Physics - Midterm I Info Sheet Physics 195...

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Midterm I Info Sheet Physics 195 Kinematic Equations: v xf = v xi + a x t x f ! x i = 1 2 v xi + v xf ( ) t x f ! x i = v xi t + 1 2 a x t 2 v xf 2 = v xi 2 + 2 a x x f ! x i ( ) Gravitational acceleration: g = 9.80 m/s 2 Quadratic equation and formula: ax 2 + bx + c = 0 , x = ! b ± b 2 ! 4 ac 2 a Conversions: 1 mile = 1.609 kilometer
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Midterm I Physics 195 Spring 2007 Name_____________________________ Score______/100 Write your name on this exam and your Scantron! Problems 1-6: Put your answers on the Scantron. If your answers do not match exactly those shown, pick the closest one. No partial credit. 1. (10 pts.) How many seconds are in a year? a) 4.50 ! 10 6 b) 3.60 ! 10 3 c) 5.26 ! 10 5 d) 3.15 ! 10 7 e) 1.89 ! 10 9 2. (10 pts.) A particle has a velocity-time graph as shown. Which graph best represents the position of the particle: v t x t x t x t x t x t a) b) c) d) e)
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3. (10 pts.) An athlete is running at 15.6 m/s. How fast is this in km/hour?
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