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jeka94
3 years ago
10

If my final exam is worth 30% and my class average is 80, what do I need to get to pass the exam?

Physics
1 answer:
kumpel [21]3 years ago
5 0
You haven't told us what the passing percentage is on the exam,
or what the passing percentage is for the semester, or any of that.


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When a 2.50 kg object is hung vertically on a certain light spring described by hookes law the spring stretches 2.76 cm.
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F=K*X,
F=M*a 

M*a=K*X

2.5*9.81=K*0.0276

24.525=K*0.0276

24.525/0.0276=K

K= 888.6 N/m ---- force constant 

assuming 2.5 refers to the new extension, just divide F/ 0.025
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981N/m 


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4 years ago
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xeze [42]

Answer:

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Given that,

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So, the magnitude of net force on the object is 8 N and it is in North direction (as it is positive). Hence, the correct option is (d) "8N north".

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3 years ago
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