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denpristay [2]
3 years ago
11

Find the charge on the capacitor in an LRC-series circuit at t = 0.05 s when L = 0.05 h, R = 4 ?, C = 0.008 f, E(t) = 0 V, q(0)

= 7 C, and i(0) = 0 A.(Round your answer to four decimal places.) _______C. Determine the first time at which the chrage on the capacitor is equal to zero. (Round your answer to four decimal places.) _______s.

Mathematics
1 answer:
Nutka1998 [239]3 years ago
5 0

Step-by-step explanation:

Below is an attachment containing the solution.

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The steps to derive the quadratic formula are shown below:
insens350 [35]

Answer:

b)

x^{2} +\frac{b}{a} x+(\frac{b}{2 a} )^{2} = \frac{-c}{a} + (\frac{b}{2 a}) ^{2}

Step-by-step explanation:

<u>Step(i)</u>:-

Given quadratic equation ax² + bx + c = 0

<u>step(ii)</u>:-

ax² + bx = -c

<u>Step(iii):</u>-

Dividing 'a' on both sides , we get

\frac{ax^{2} +bx }{a} = \frac{-c}{a}

x^{2} + \frac{bx}{a}  = \frac{-c}{a}

<u><em>Step(iv)</em></u>:-

Adding  (\frac{b}{2 a} )^{2} on both sides , we get

x^{2} +\frac{b}{a} x+(\frac{b}{2 a} )^{2} = \frac{-c}{a} + (\frac{b}{2 a}) ^{2}

8 0
4 years ago
Answer Asap!
Dmitry_Shevchenko [17]

Answer:

a) RTP

b) MN

c) x=7

Step-by-step explanation:

hope this helps

5 0
3 years ago
Help me please I'm stuck!
alisha [4.7K]
My teachers taught me a trick make a C from the top to bottom

so 5  1/2 would be 

5 times 1 + 2 so denominator stays the same so it 7/2.



bottom one is 22/4

 make a C from top to bottom and multiply outer number to top add the bottom to that then keep denominator the same. 


Hope i helped. 
3 0
3 years ago
Anyone as bored as I am?
lana66690 [7]

Answer:

I certainly am

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Is Integer a Rational Number?
slava [35]

Hey there!

Before we get to know an Integer and Rational Number, we have to know the Real Number system first.

1. What is Real Number System?

  • Real Number System is very commonly used in mathematics. It is a number system that is "logical", at least when it comes to solving an equation.

But do you know that the Real Number system can be broken into two categorizes? And what are them?

Real Numbers can be broken into these main two categorizes which are:

  • Irrational Number
  • Rational Number

These numbers can also be broken into other categorizes as well! Crazy, ain't it? Well that's how maths work!

Anyways, we will skip Irrational Number since it is off-topic and not related to your question. We will talk about Rational Number instead.

2. What is Rational Number?

  • Rational Number is a number that can be written in fraction form. That is a simple explanation for the Rational Number. Please lecture or note that <u>a</u><u>p</u><u>p</u><u>r</u><u>o</u><u>x</u><u>i</u><u>m</u><u>a</u><u>t</u><u>i</u><u>o</u><u>n</u><u>s</u><u> </u><u>a</u><u>r</u><u>e</u><u>n</u><u>'</u><u>t</u><u> </u><u>c</u><u>o</u><u>n</u><u>s</u><u>i</u><u>d</u><u>e</u><u>r</u><u>e</u><u>d</u><u> </u><u>a</u><u>s</u><u> </u><u>r</u><u>a</u><u>t</u><u>i</u><u>o</u><u>n</u><u>a</u><u>l</u><u> </u><u>n</u><u>u</u><u>m</u><u>b</u><u>e</u><u>r</u><u>s</u><u>.</u> Even though π ≈ 22/7 which is in fraction form but it is just an approximation which is considered as <em>I</em><em>r</em><em>r</em><em>a</em><em>t</em><em>i</em><em>o</em><em>n</em><em>a</em><em>l</em><em> </em><em>N</em><em>u</em><em>m</em><em>b</em><em>e</em><em>r</em><em>.</em> Also <u>i</u><u>f</u><u> </u><u>i</u><u>n</u><u>f</u><u>i</u><u>n</u><u>i</u><u>t</u><u>y</u><u>/</u><u>e</u><u>n</u><u>d</u><u>l</u><u>e</u><u>s</u><u>s</u><u> </u><u>d</u><u>e</u><u>c</u><u>i</u><u>m</u><u>a</u><u>l</u><u> </u><u>c</u><u>a</u><u>n</u><u> </u><u>b</u><u>e</u><u> </u><u>w</u><u>r</u><u>i</u><u>t</u><u>t</u><u>e</u><u>n</u><u> </u><u>i</u><u>n</u><u> </u><u>f</u><u>r</u><u>a</u><u>c</u><u>t</u><u>i</u><u>o</u><u>n</u><u> </u><u>f</u><u>o</u><u>r</u><u>m</u><u> </u><u>a</u><u>s</u><u> </u><u>w</u><u>e</u><u>l</u><u>l</u><u>,</u><u> </u><u>t</u><u>h</u><u>e</u><u>y</u><u> </u><u>a</u><u>r</u><u>e</u><u> </u><u>c</u><u>o</u><u>n</u><u>s</u><u>i</u><u>d</u><u>e</u><u>r</u><u>e</u><u>d</u><u> </u><u>a</u><u>s</u><u> </u><u>R</u><u>a</u><u>t</u><u>i</u><u>o</u><u>n</u><u>a</u><u>l</u><u> </u><u>N</u><u>u</u><u>m</u><u>b</u><u>e</u><u>r</u><u> </u><u>t</u><u>o</u><u>o</u><u>!</u>

Now we know the meaning of Rational Number. But like I said, the Rational Number can be broken into other categorizes which are:

  • Integers - Whole number or number without fraction or decimal.
  • Fractions and Decimals that can be written in fraction form.

And Integers can also be broken into:

  • Negative Integers
  • Zero
  • Positive Integers

3. Conclusion and Answer

  • Since Integers are subset of Rational Number, we can conclude that <u>I</u><u>n</u><u>t</u><u>e</u><u>g</u><u>e</u><u>r</u><u>s</u><u> </u><u>a</u><u>r</u><u>e</u><u> </u><u>R</u><u>a</u><u>t</u><u>i</u><u>o</u><u>n</u><u>a</u><u>l</u><u> </u><u>N</u><u>u</u><u>m</u><u>b</u><u>e</u><u>r</u><u>.</u>

Hope this helps, and let me know if you have any doubts regarding Real Number system.

6 0
3 years ago
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