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Physical Science 12/6

Physical Science 12/6. Pop Quiz!!! Homework (not Really). Fore each question:. State the givens State what is wanted State equation (s) State Conversions Show values Plugged in Answer with unit s. Question 1.

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Physical Science 12/6

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  1. Physical Science12/6 Pop Quiz!!! Homework (not Really)

  2. Fore each question: • State the givens • State what is wanted • State equation(s) • State Conversions • Show values Plugged in • Answer with units

  3. Question 1 • The most massive car mass produced was the Russian-made Zil-41407. If one of these cars were to move at just 8.9 m/s, its momentum would be 2.67X104 kg m/s. What is the mass of a Zil-41407?

  4. Zil-41407

  5. Question #2 • A child pulls a sled up a snow-cover hill. In the process, the child does 405 J of work on the sled. If she walks a distance of 15m up the hill, how large a force does she exert on the sled?

  6. Question #3 • The space shuttle, which was first launched on April 12 1981, is the world’s first reusable space vehicle. The shuttle is placed in orbit by three engines that do 1.4 x 1013 J of work in 8.5 minutes. What is the power output of these engines?

  7. Question #4 • The royal Gorge Bridge is situated 321 m above the Arkansas River in Colorado. If the gravitational potential energy associated with a tourist on the bridge is 1.73 x 105 J with respect to the river, what is the tourist’s mass?

  8. Homework on pg’s 858,857,852

  9. Answers • P858 • 101) 4200 J • 102) 30 N • 103) 6.8 J • 106) 222 W • 107) 2,000,000 J • 108) 8.81 x 10 15 J

  10. Answers • Page 857 • 96a) 14100 kg m/s • 96b) 20500 kg m/s • 97) 320 kg m/s • 98) 4.2 m/s

  11. Answers • 6a) 1.1045 x 10 2 m • 6b) 3.45 x 10 -6 s • 6c) 1.32948 x 10 5 kg • 6d) 3.439 x 10 -2 cm • 7) 2.7 x 108 people • 8) 7.029 x 10 7 airplanes • 9) 5.685 x 10 26 automobiles

  12. Hand in the answers to questions on the walls • Hand in homework from book

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