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aalyn [17]
3 years ago
8

Using the equation for for Newton's Second law, m=F/a solve the following problem. You have been given an object with a force of

10N and an acceleration of 2 m/s2, what is the mass?
Group of answer choices

1. 8g

2. 3g

3. 20g

4. 5g
Physics
1 answer:
inessss [21]3 years ago
8 0

Answer:

4. 5g

Explanation:

F=ma so, m=Fa. All you have to do is 10/2. Don't be confused by the units. Mass will normally be in grams.

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The  time constant is  \tau  = 1.265 s

Explanation:

From the question we are told that

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Where  \tau  is the time constant  

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and from the  question we are told that the  at the given time the potential of the capacitor is 85% = 0.85 of its final potential so

      V  = 0.85

Hence

     0.85 =  1 -  e^{-\frac{2.4}{\tau } }

       - {\frac{2.4}{\tau } }  =  ln0.15

        \tau  = 1.265 s

     

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