HW03-problems - markowitz(am45362 HW03 distler(56295 This...

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markowitz (am45362) – HW03 – distler – (56295) 1 This print-out should have 22 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. 001(part1of4)10.0points Denote the initial speed of a cannon ball fired from a battleship as v 0 . When the initial projectile angle is 45 with respect to the horizontal, it gives a maximum range R . y x θ 45 R R/ 2 The time of flight t max of the cannonball for this maximum range R is given by 1. t max = 4 v 0 g 2. t max = 2 v 0 g 3. t max = 2 v 0 g 4. t max = 3 v 0 g 5. t max = v 0 g 6. t max = 1 2 v 0 g 7. t max = 1 4 v 0 g 8. t max = 1 2 v 0 g 9. t max = 2 3 v 0 g 10. t max = 1 3 v 0 g 002(part2of4)10.0points The maximum height h max of the cannonball is given by 1. h max = 3 v 2 0 g 2. h max = 1 3 v 2 0 g 3. h max = 2 v 2 0 g 4. h max = 1 4 v 2 0 g 5. h max = 2 v 2 0 g 6. h max = 1 2 v 2 0 g 7. h max = v 2 0 g 8. h max = 1 2 v 2 0 g 9. h max = 2 3 v 2 0 g 10. h max = 4 v 2 0 g 003(part3of4)10.0points The speed v h max of the cannonball at its max- imum height is given by 1. v h max = v 0 2. v h max = 2 v 0 3. v h max = 1 2 v 0 4. v h max = 2 v 0 5. v h max = 1 2 v 0 6. v h max = 1 4 v 0 7. v h max = 1 3 v 0 8. v h max = 4 v 0 9. v h max = 2 3 v 0 10. v h max = 3 v 0
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markowitz (am45362) – HW03 – distler – (56295) 2 004(part4of4)10.0points At a new angle, θ , the new range is given by R = R 2 . The corresponding angle, θ , which is greater than 45 , is given by 1. 72 < θ 74 2. 76 < θ 78 3. 60 < θ 62 4. 68 < θ 70 5. 62 < θ 64 6. 70 < θ 72 7. 78 < θ 80 8. 64 < θ 66 9. 74 < θ 76 10. 66 < θ 68 005(part1of2)10.0points
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