lissxthhhh
lissxthhhh lissxthhhh
  • 03-04-2020
  • Physics
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MATHPHYS PLEASE HELP IT SAYS ITS WRONG

MATHPHYS PLEASE HELP IT SAYS ITS WRONG class=

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mymeatballrussian mymeatballrussian
  • 03-04-2020
I can barely see the pic
Answer Link
MathPhys
MathPhys MathPhys
  • 03-04-2020

Answer:

0.833 J

Explanation:

The initial kinetic energy of the spike is:

KE = ½ mv²

KE = ½ (0.52 kg) (3.7 m/s)²

KE = 3.56 J

23.4% of this energy is converted to internal energy.

U = 0.234 (3.56 J)

U = 0.833 J

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