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koban [17]
3 years ago
14

What is the difference between electric current and electric circuit?

Physics
2 answers:
Leto [7]3 years ago
7 0
The different bettween electric circut is an electric current is a drift of electric charge in the case of metal conductors a drift of free electrons. A electric circut is the lath or route taking by those drifting charge carriers.

Hope this helps.
tangare [24]3 years ago
4 0
Current<span> is nothing but the flow of charges due to the potential </span>difference<span>, whether its an electronic </span>circuit<span> or an </span>electrical circuit<span>.

</span>
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Assume that the force of a bow on an arrow behaves like the spring force. In aiming the arrow, an archer pulls the drawstring ba
Alex

Answer:

 v=39.05 m/s

Explanation:

Given that

x= 56 cm

F= 158 N

m= 58 g = 0.058 kg

Lets take spring constant = k

At the initial position,before releasing the arrow

F= k x

By putting the values

F= k x

158= 0.56 k

k=282.14 N/m

Now from energy conservation

Lets take final speed of the arrow after releasing

\dfrac{1}{2}kx^2=\dfrac{1}{2}mv^2

k x²=mv²

282.14 x 0.56² = 0.058 v²

v=39.05 m/s

3 0
3 years ago
A solid circular plate has a mass of 0.25 kg and a radius of 0.30 m. It starts rolling from rest at the top of a hill 10 m long
KATRIN_1 [288]

To solve the problem it is necessary to apply the equations related to the conservation of both <em>kinetic of rolling objects</em> and potential energy and the moment of inertia.

The net height from the point where it begins to roll with an inclination of 30 degrees would be

h=Lsin30

h=10sin30

h=5m

In the case of Inertia would be given by

I = \frac{mR^2}{2}

In general, given an object of mass m, an effective radius k can be defined for an axis through its center of mass, with such a value that its moment of inertia is

I = mk^2

\frac{mR^2}{2}= mk^2

\frac{k^2}{R^2}=\frac{1}{2}

Replacing in Energy conservation Equation we have that

Potential Energy = Kinetic Energy of Rolling Object

mgh = \frac{1}{2}mv^2(1+\frac{k^2}{r^2})

9.8*5=\frac{1}{2}v^2(1+\frac{1}{2})

v^2 (1.5) = 98

v=8.0829m/s

Therefore the correct answer is C.

3 0
3 years ago
Which of the following regions of the EM epxtrum has the highest
Olin [163]

Answer:

1) x rays

Explanation:

Honestly Gamma rays has the Highest frequency, but in your options, gamma rays is not among, so x rays has the highest frequency among your options.

by Manshow

4 0
3 years ago
Read 2 more answers
Scientists find a new technique to insert genes into apples to allow them to grow in colder climates. Which is an example of a m
Sever21 [200]
It's B because it talks about if it harms people.  That would be an example of a medical/ethical issue.
6 0
3 years ago
Read 2 more answers
A 0.3 g mosquito is flying toward a girl with a speed of 4.5 mph. Just before landing on the girl, the fly is swatted straight b
luda_lava [24]

Answer:

1.1x10^-2N

Explanation:

We have the change in momentum as

P = 0.3(4.5+12)g.mph

= 0.3x0.447x(4.5+12)x10^-3

Then the force that is exerted will be

F = p/∆t

∆t = 0.2

= 0.3x0.447x(4.5+12)x10^-3/0.2

= 0.1341x16.5x10^-3/0.2

= 1.1x10^-2

Therefore the force that was exerted is equal to 1.1x10^-2

5 0
3 years ago
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