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stiks02 [169]
3 years ago
13

A wire delivers 12.0 C of charge in 4.0 s. What is the current in the wire? 3.0 A 8.0 A 16 A 48 A

Physics
2 answers:
poizon [28]3 years ago
6 0

Q = Charge delivered by the wire = 12.0 C

t = time taken for the charge to be delivered = 4.0 s

i = current flowing in the wire due to the flow of charge  = ?

Current is defined as the time rate at which charge pass through a particular point.

Current in the wire is given as

i = Q/ t

inserting the values

i = (12.0) /(4.0)

i = 3 A

hence the correct choice is 3.0 A

const2013 [10]3 years ago
5 0
3.0 A i got it off Quizlet and there usually always right lol can't submit tho my answers to short.... Dot dot dot
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Answer:

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Explanation:

given,

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differentiating with respect to time we get

2 x\dfrac{dx}{dt}+2y\dfrac{dy}{dt} = 0..............(1)

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from equation (1)

now,

16\times 1.4 + 12\dfrac{dy}{dt} = 0

\dfrac{dy}{dt} = -\dfrac{5.6}{3}

let the angle between the ladders be θ

tan\theta = \dfrac{y}{x}

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\dfrac{dy}{dt} =\dfrac{dy}{dt} tan\theta + x sec^2\theta\dfrac{d\theta}{dt}

-\dfrac{5.6}{3} =1.4\times \dfrac{6}{8} + 8 (1+\dfrac{9}{16})\dfrac{d\theta}{dt}

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6 0
3 years ago
40 POINTS
prohojiy [21]

Answer:

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Explanation:

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7 0
2 years ago
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Mekhanik [1.2K]

Answer:

v\approx 16.956\,\frac{m}{s}

Explanation:

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\Sigma F = f = m\cdot \frac{v^{2}}{R}

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v = \sqrt{\frac{f\cdot R}{m} }

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Answer:

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Explanation:

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mestny [16]

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3 years ago
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