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Illusion [34]
3 years ago
15

Suppose a current flows through a copper wire. Which two things occur?

Physics
2 answers:
ICE Princess25 [194]3 years ago
4 0

Answer:

A) A magnetic field forms around the wire.

C) The field is perpendicular to the direction of flow of the current.

Explanation:

A.pex

worty [1.4K]3 years ago
3 0
I’m pretty sure the answer is c and d hope this helps and good luck
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If v = 5.00 meters/second and makes an angle of 60° with the negative direction of the y–axis, calculate all possible values of
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Vx = + 4.33 m/s. Hope this helps
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3 years ago
Joffrey talks and moves slowly. When asked a question, he answers slowly in monotone monosyllables, if he answers at all. Joffre
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Answer:

R.E.T.A.R.D.A.T.I.O.N

Explanation:

It won't let me spell it normal

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3 years ago
A forward honzontal force of 50 N is applied to a crate. A second horizontal force o
True [87]

Answer:

Explanation:

magnitude: 180-50=130N

Direction: in the direction same as the second horizontal force

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3 years ago
During a very quick stop, a car decelerates at 7.00 m/s2 . (a) What is the angular acceleration of its 0.280-m-radius tires, ass
love history [14]

Answer:

-25 rad/s²

29 times

3.8 seconds

50.54 m

26.6 m/s

Explanation:

\omega_f = Final angular velocity

\omega_i = Initial angular velocity

\alpha = Angular acceleration

\theta = Angle of rotation

a = Acceleration = -7 m/s² (negative because of deceleration)

r = Radius of wheel = 0.28 m

Angular acceleration is given by

\alpha=\frac{a}{r}\\\Rightarrow \alpha=\frac{-7}{0.28}\\\Rightarrow \alpha=-25\ rad/s^

Angular acceleration of the wheel is -25 rad/s²

\omega_f=\omega_i+\alpha t\\\Rightarrow t=\frac{\omega_f-\omega_i}{\alpha}\\\Rightarrow t=\frac{0-95}{-25}\\\Rightarrow t=3.8\ s

It took 3.8 seconds for the car to stop

\theta=\omega_it+\frac{1}{2}\alpha t^2\\\Rightarrow \theta=95\times 3.8+\frac{1}{2}\times -25\times 3.8^2\\\Rightarrow \theta=180.5\ rad

\frac{180.5}{2\pi}=28.72746\ rev

The wheel rotated 29 times.

The

Initial velocity

u=r\omega_i\\\Rightarrow u=0.28\times 95\\\Rightarrow u=26.6\ m/s

The car’s initial velocity is 26.6 m/s

s=ut+\frac{1}{2}at^2\\\Rightarrow s=26.6\times 3.8+\frac{1}{2}\times -7\times 3.8^2\\\Rightarrow s=50.54\ m

Distance covered in the time is 50.54 m

If the distance is found in meters we get 50.54 m which is very low. Considering the initial velocity is 95.76 km/h. Coming to a stop in that distance is very low. So, the values do not seem reasonable. At least a 100 m is required to stop from that speed.

3 0
3 years ago
A student repeats a reaction several times to test the effects of various
GREYUIT [131]
I would pick answer option A
5 0
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