All categories

3 years ago

How much charge does a 9.0Vbattery transfer from the negative to the positive terminal while doing45Jof work?

Physics

1 answer:

sveticcg [70]3 years ago

3 0

Answer:

q = 5 coulombs.

Explanation:

Given :

Potential of battery , V = 9 V.

Work done in transferring charge from negative terminal to the positive terminal , W = 45 J.

We know, Work done by charge is product of its charge by its potential.

$W=q\times V$

Therefore, $q=\dfrac{W}{V}$

Putting values of W and V in above equation.

We get , $q=\dfrac{45}{9}=5\ coulombs.$

Hence, this is the required solution.

You might be interested in

4) (5 points) Given are the magnitudes and orientations (with respect to x-axis) of 3

Kazeer [188]

Expand each vector into their component forms:

$\vec A=(4.5\,\mathrm N)(\cos\theta_A\,\vec\imath+\sin\theta_A\,\vec\jmath)=(2.58\,\vec\imath+3.69\,\vec\jmath)\,\mathrm N$

Similarly,

$\vec B=(-1.23\,\vec\imath+0.860\,\vec\jmath)\,\mathrm N$

$\vec C=(-3.44\,\vec\imath-4.91\,\vec\jmath)\,\mathrm N$

Then assuming the resultant vector $\vec R$ is the sum of these three vectors, we have

$\vec R=\vec A+\vec B+\vec C$

$\vec R=(-2.09\,\vec\imath-0.368\,\vec\jmath)\,\mathrm N$

and so $\vec R$ has magnitude

$\|\vec R\|=\sqrt{(-2.09)^2+(-0.368)^2}\,\mathrm N\approx2.12\,\mathrm N$

and direction $\theta_R$ such that

$\tan\theta_R=\dfrac{-0.368}{-2.09}\implies\theta_R=-170^\circ=190^\circ$

5 0

3 years ago

How do you find the average speed of an object?

Aleonysh [2.5K]

Answer:

Average speed is total distance divided by total time.

v = d / t

5 0

3 years ago

Read 2 more answers

I need some help with this!

Sonja [21]

Explanation:

ummm I believe it's frequency

5 0

3 years ago

what is the magnitude of the vector described below? 13 m/s to the east a. east b. meters per second c. 13 m/s d. meters

Katen [24]

Answer:

Explanation:

Magnitude of any quantity is the measurable value of the quantity. While the direction of the given quantity is the specific pointing direction of position or the angle at which it move.

The magnitude of the vector described below? 13 m/s to the east will be 13 m/s

While the direction will be eastward.

Therefore, the magnitude is 13 m/s

The correct answer is option C

3 0

3 years ago

Both the Moon and the Sun influence the tides on Earth. The moon has a much greater influence though. Why is that? A) because th

Temka [501]

C. The sun is 400 times farther from Earth than the moon is.

3 0

3 years ago

Read 2 more answers