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anonymous

  • one year ago

Suppose a spring-powered gun has a spring with a spring constant of k = 1,000 N/m. How much work can it do in accelerating the projectile if it is compressed by x = 0.10 m? A. 5.0 * 10^-3 J B. 20 J C. 5.0 J D. 10 J

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  1. anonymous
    • one year ago
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    |dw:1433104033605:dw| i tried to draw the rifles lol :P

  2. Michele_Laino
    • one year ago
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    the potential energy stored by a spring is given by the subsequent formula: \[EP = \frac{1}{2}k{\left( {\Delta x} \right)^2} = \frac{1}{2} \times 1000 \times {\left( {0.1} \right)^2} = ...Joules\]

  3. anonymous
    • one year ago
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    we get 0.05 J ?

  4. Michele_Laino
    • one year ago
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    are you sure?

  5. anonymous
    • one year ago
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    oh oops sorry i forgot a parentheses haha so i got 5 is 5 J our solution?

  6. Michele_Laino
    • one year ago
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    yes! since all that potential energy will transform itself in kinetic energy of our projectile

  7. anonymous
    • one year ago
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    ahh okie! Yay! :D thanks!!

  8. Michele_Laino
    • one year ago
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    :)

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