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iren2701 [21]
3 years ago
5

During her first trip abroad, Paula was surprised to find that people in other cultures ate such foods as snails, squid, insects

, lizards, earthworms, and seaweed. "One day they will become civilized like us and eat normal foods like donuts, pizza, hot dogs, and hamburgers and fries," she e-mailed her parents. Paula's remarks reflect a tendency called:
Physics
1 answer:
Mkey [24]3 years ago
4 0

Answer:

Ethnocentrism

Explanation:

According to my research on studies conducted by various sociologists, I can say that based on the information provided within the question Paula's remarks reflect a tendency called Ethnocentrism. This refers to when an individual judges another culture based on the aspects, traits, and preconceptions, within their own culture and way of life. Which is what Paula is doing by comparing her culture's eating habits with another.

I hope this answered your question. If you have any more questions feel free to ask away at Brainly.

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Mechanical Energy.

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Which type of change results in a new substance being produced?
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What is the most widely accepted model used to predict the future of the universe?
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A long, hollow, cylindrical conductor (inner radius 3.4 mm, outer radius 7.3 mm) carries a current of 36 A distributed uniformly
Elden [556K]

Answer:

a. B= 9.45 \times10^{-3} T

b. B= 0.820 T

c. B= 0.0584 T

Explanation:

First, look at the picture to understand the problem before to solve it.

a. d1 = 1.1 mm

Here, the point is located inside the cilinder, just between the wire and the inner layer of the conductor. Therefore, we only consider the wire's current to calculate the magnetic field as follows:

To solve the equations we have to convert all units to those of the international system. (mm→m)

B=\frac{u_{0}I_{w}}{2\pi d_{1}} =\frac{52 \times4\pi \times10^{-7} }{2\pi 1.1 \times 10^{-3}} =9.45 \times10^{-3} T\\

μ0 is the constant of proportionality

μ0=4πX10^-7 N*s2/c^2

b. d2=3.6 mm

Here, the point is located in the surface of the cilinder. Therefore, we have to consider the current density of the conductor to calculate the magnetic field as follows:

J: current density

c: outer radius

b: inner radius

The cilinder's current is negative, as it goes on opposite direction than the wire's current.

J= \frac {-I_{c}}{\pi(c^{2}-b^{2}  ) }}

J=\frac{-36}{\pi(5.33\times10^{-5}-1.16\times10^{-5}) } =-274.80\times10^{3} A/m^{2}

B=\frac{u_{0}(I_{w}-JA_{s})}{2\pi d_{2} } \\A_{s}=\pi (d_{2}^{2}-b^2)=4.40\times10^{-6} m^2\\

B=\frac{6.68\times10^{-5}}{8.14\times10^{-5}} =0.820 T

c. d3=7.4 mm

Here, the point is located out of the cilinder. Therefore, we have to consider both, the conductor's current and the wire's current as follows:

B=\frac{u_{0}(I_w-I_c)}{2\pi d_3 } =\frac{2.011\times10^-5}{3.441\times10^{-4}} =0.0584 T

As we see, the magnitud of the magnetic field is greater inside the conductor, because of the density of current and the material's nature.

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How do fossils provide evidence of continental drift?
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