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jolli1 [7]
3 years ago
12

Which of the following describes a referee's job?

Physics
1 answer:
Serhud [2]3 years ago
5 0

Answer:

C. Supervising the game to make sure teams are playing fairly

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Answer:

265 J

Explanation:

Energy=PE+KE=mgh+ 0.5mv^{2} where KE is kinetic energy, PE is potential energy, m is the mass of an object, v is the speed, h is the height and g is acceleration due to gravity.

Substituting 19.7 Kg for mass, 0.934 for h, 2.93 for v and 9.81 for g then

Energy=19.7(9.81*0.934+0.5*2.93^{2})=265.063303\approx 265 J

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