1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
GenaCL600 [577]
3 years ago
12

The current flowing through an electric circuit is the derivative of the charge as a function of time. If the charge q is given

by the equation q(t)=3t^2+2t-5 what is the current at t = 0?
Mathematics
2 answers:
blsea [12.9K]3 years ago
6 0

Answer:

The current at t = 0 is

I (0) = 2 units of current

Step-by-step explanation:

If the current flowing through an electric circuit is defined as the derivative of the charge as a function of time and we have the equation of the charge as a function of time, then, to find the equation of the current, we derive the equation of the charge.

q (t) = 3t ^ 2 + 2t-5

\frac{dq(t)}{dt} = 3 (2) t ^ {2-1} +2t ^ {1-1} -0

Simplifying the expression we have:

\frac{dq(t)}{dt} = 6t + 2t ^0\\\\\frac{dq(t)}{dt} = 6t + 2 = I (t)

Finally, the equation that defines the current of this circuit as a function of time is:

I (t) = 6t +2

Now to find the current at t = 0 we make I (t = 0)

I (0) = 6 * 0 +2

I (0) = 2 units of current

LUCKY_DIMON [66]3 years ago
5 0

Answer: I just took the test and got 100%

1. C, 2

2. D, v(t) = 8t - 2

3. B, 902 mi/min

4. A, the car is slowing down at a rate 10 mi/h^2

You might be interested in
Which phrase describes density? height of a point above sea level force pushing on an area or a surface amount of mass in a cert
hichkok12 [17]
The answer will be amount of mass in a certain volume .
5 0
2 years ago
Read 2 more answers
Of the 520 students participating in a chess tournament, 35% were male. How many females were in the tournament?
elena55 [62]

Answer:

182

Step-by-step explanation:

take 520 and multiply by 0.35

8 0
3 years ago
Read 2 more answers
Help me on my geometry hw it’s due in 25 minutes
icang [17]

Answer:

now just half the first triangals answers

Step-by-step explanation:

x =21

y=24

<u>TH</u>=24          <u>PQ</u>=12

<u>RH</u>=24          <u>NQ</u>=12

<u>RT</u>=21            <u>NP</u>=10.5

>T=80            >P=80

>H=20           >Q=20

>R=80           >N=80

8 0
3 years ago
Read 2 more answers
Solve for x. <br>2x/9 = -65 <br><br>a) x = -292 1/2 <br>b) x = -14 4/9 <br>c) x = 292 1/2
Ludmilka [50]

Answer:

A) -292.5

Step-by-step explanation:

-65 x 9 = -585

-585 ÷ 2 = -292.5

8 0
3 years ago
Read 2 more answers
Determine whether each given expression is equivalent to 6 x 4 1/2 or is not equivalent by checking the appeopriate box in the t
Simora [160]
It would be the answer B??
6 0
3 years ago
Read 2 more answers
Other questions:
  • Help me with my homework idk how to do it
    8·1 answer
  • Write an equation of the line that passes through (−2,3) and (0,8)
    13·1 answer
  • Change y=-3x+7 to standard form
    9·1 answer
  • Which of the following tables is a relation that represents a function?
    9·1 answer
  • What is a number that equals 183?
    5·2 answers
  • Witch of the following options have the same value as 80% of 22
    12·1 answer
  • For Cooper's lemonade recipe, 6 lemons are required to make 3 cups of lemonade. At
    15·1 answer
  • Need help with this didn’t understand it
    7·1 answer
  • This is hard guys helppppp
    5·1 answer
  • Please help, am i right
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!