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AveGali [126]
3 years ago
7

As a capacitor is being charged in an RC circuit. the current flowing through a resistor isa) increasingb) decreasingc) constant

d) zero
Physics
1 answer:
Montano1993 [528]3 years ago
4 0
<h2>Answer: decreasing</h2>

An RC circuit is an electrical circuit composed of resistors and capacitors, where the charging time T of the circuit is proportional to the magnitude of the electrical resistance R and the capacity C of the capacitor.  

As shown below:

T=R.C

In this context, the electrical resistance is the opposition to the flow of electrons when moving through a conductor.

Therefore:

<h2>When a capacitor is being charged in an RC circuit, the current flowing through a resistor <u>decreases</u>.</h2>

And the correct option is b.

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Question in picture.
Gelneren [198K]
<h2>Hello!</h2>

The answer is: A. 19.3 joules

<h2>Why?</h2>

Since it's an elastic collision, the kinetic energy after and before the collision will be the same.

Kinetic energy can be calculated using the following equation:

KE=\frac{1}{2}mv^{2}

Where:

KE=KineticEnergy\\m=mass\\v=velocity

So,

First object, (going to the right):

m=7.20kg\\v=2\frac{m}{s}

KE_{1}=\frac{1}{2}*7.20Kg*(2\frac{m}{s})^{2}=14.4Joules

Second object:, (going to the left):

m=5.75kg\\v=-1.30\frac{m}{s}

KE_{2}=\frac{1}{2}*5.75kg*(-1.30\frac{m}{s})^{2}=4.86Joules

Remember,

1Joule=1Kg.\frac{m^{2}}{s^{2} }

Hence,

The total kinetic energy after the collision will be:

T=KE_{1}+KE_{2}=14.4Joules+4.86joules=19.26joules=19.3joules

The total kinetic energy after the collision is 19.3 joules (rounded to the nearest tenth)

Have a nice day!

6 0
3 years ago
If T, = 40 N, find T, and the mass of the weight (W).
seraphim [82]

Answer:4kg

Explanation:

acceleration due to gravity(g)=10m/s^2

Weight(w)=40N

Weight=mass x g

40=mass x 10

Divide both sides by 10

Mass =40/10

Mass=4kg

5 0
3 years ago
What two properties show that a drink is a fluid
Kryger [21]
Two properties that show that the drink is a fluid/liquid include its retention of volume and its conformation to the shape of its container.
7 0
3 years ago
A second hand on a clock has a radius of 10 cm what is the circumference of a circle around which the secondhand travels
hram777 [196]
The answer has got to be 91
6 0
3 years ago
1. Let C = (1,4), P = (5,2), and P′ = (13,−2). There is a dilation that leaves C where it is and transforms P into P′. The point
V125BC [204]

Answer:

The dilatation is 3 because the <em>separation </em>between the dilatation center C and P grows by that factor of 3.

Explanation:

  1. Between C and P, the separation is |5-1| = 4 in x-axis and |2-4| = 2 in y-axis
  2. Between C and P', the separation is |13-1| = 12 in x-axis and |-2-4| = 6 in y-axis.

Comparing the separation on each direction, 12/4 = 3 and 6/2 = 3. Therefore, that's the dilatation value.

Alternatively, by computing the distances between the points

\frac{\sqrt{\left(13-1\right)^2+\left(-2-1\right)^2}}{\sqrt{\left(5-1\right)^2+\left(-2-1\right)^2}}=\frac{6\sqrt{5}}{2\sqrt{5}}=3

3 0
4 years ago
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