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11111nata11111 [884]
3 years ago
14

A hollow cylinder with an inner radius of 4.0 mm and an outer radius of 30 mm conducts a 3.0-Acurrent flowing parallel to the ax

is of the cylinder. If the current density is uniform throughout the wire,what is the magnitude of the magnetic field at a point 12 mm from its center
Physics
1 answer:
Kryger [21]3 years ago
8 0

Answer:

the magnitude of the magnetic field is 0.45 mT

Explanation:

Knowing the formula

B = \frac{m0* (i - i')}{2* Pi* r}

i = 3A    i' = 0A

B = \frac{4*3.1416e^{-7} * (3-0) }{2*3.1416*0.012}

B = 0.45 mT

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Answer:

244.64m

Explanation:

First, we find the distance traveled with constant velocity. It's simply multiplying velocity time the time that elapsed:

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The distance that the ball travels in the first phase can be found with the following expression:

v^2 = v_0^2 + 2a*d

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d = \frac{v^2 - v_0^2}{2a} = \frac{(0m/s)^2 - (-8m/s)^2}{2*7m/s^2}= -4.57m

Now, before finding the distance traveled in the second phase, we need to find the time that took for the velocity to reach 0:

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Then, the time of the second phase will be:

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x = \frac{1}{2}a*t^2 + v_0*t + x_0

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So, the total distance covered by this object in meters will be the sum of all the distances we found:

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Julietta and Jackson are playing miniature golf. Julietta's ball rolls into a long. Straight upward incline with a speed of 2.95
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Answer:

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\Delta s = 3.504\,m

The length of the incline is 3.504 meters.

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3 years ago
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