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just olya [345]
1 year ago
5

which of the following is an example of ethnocentrism? the anxiety felt by non-americans who are still learning english while co

mmunicating with americans. accepting and understanding that some cultures' practices are foreign to most of us. believing that the manners and customs of people from her country show they value formality and politeness. a global organization frequently sets up workshops for their employees to educate one another about cultural differences.
Social Studies
1 answer:
sveta [45]1 year ago
8 0

Option A. An example of ethnocentrism would be the anxiety felt by non-americans who are still learning english while communicating with americans.

<h3>What is ethnocentrism?</h3>

In contexts where ethnicity, inter-ethnic interactions, and related inter-group concerns are important, the term "ethnocentrism" is frequently employed. The phrase is typically defined as "believing that one's own group's ways are superior to others" or "judging that one's own group is superior to other groups."

The belief that the traditional clothes of a culture other than your own is "weird" or "incorrect" is an example of ethnocentrism, whereas cultural relativism would recognize and accept that other civilizations have their own dress and would not pass judgment on someone's attire.

read more on ethnocentrism here:brainly.com/question/4458198

#SPJ1

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3 years ago
Consider that the capacitor is initially not charged and the voltage of the battery is 3.00 V. The switch is closed at ????????
EastWind [94]
  • Your question has some difficulties in symbols and variables to read. That's why I am re-writing (re-arranged) the Question's statement again which is:

Question:

For the R-C circuit shown in figure 1 on page 3, R= 100 ohms and C=1.00F.

A)What is the time constant of the R-C circuit?

B) consider that the capacitor is initially not charged and the voltage of the battery is 3.00 V. The switch is closed at t=0. Using the appropriate formulas, write down the voltage Vc(t) on the capacitor and the current I(t) in the circuit.  

C) consider that the capacitor is initially fully charged to 3.00 V. The switch is open at t=0. Using the appropriate formulas, write down the voltage Vc(t) on the capacitor and current I(t) in the circuit.

  • Your Question is missing the figure as well, which is attached below, please find it in the attached file.

Answer:

Part.A

100 seconds

Part.B

Vc(t)=0V

I(t)=30mA

Part.C

Vc(t)=3.0V

I(t)=0A

Explanation:

<u>Given Data:</u>

Resistance=R=100 ohms

Capacitance=C=100F

<u>Part.A: Time constant=T=?</u>

<u>Time constant:</u>

Time required to charge the capacitor upto 63.23% of the applied voltage is called a Time constant.

As we know that time constant for the RC (circuit having only resistor and capacitor) is equal to product of resistance and capacitance

T=R*C

so T=100*1

T=100seconds

<u>Part.B: Vc(t) and I(t)=? If switch is closed</u>

<u>Given Data:</u>

Voltage of the battery=Vs=3.0V

Capacitor is not charged initially and switch is closed at t=0 means that the circuit will become short (because capacitor is charging) in which current I(t) exist and voltage Vc(t) is zero.

<u>Short circuit: </u>

The circuit in which current is maximum and voltage is zero.

Thus voltage on the capacitor is Vc(t)=0V

Now we can find I(t) as follow:

Thus, Applying Kirchoff's Law (sum of all voltages is zero) on the circuit in the figure attached below, we get

V_{s}-V_{R}-V_{c}(t) =0

putting values, we get

3.0-I(t)*R-0=0

I(t)*100=3

I(t)=\frac{3}{100}

Current in the circuit is I(t)=0.03A\ OR\ 30mA

<u>Part.c: Vc(t) and I(t)=? if switch is opened</u>

If switch is opened and capacitor is fully charged then the capacitor will act as a battery and will supply will voltage as it has stored the charge. The switch is open it means the circuit is open.

So current I(t) in the circuit is zero=0A

and voltage Vc(t) exist which can be found as:

Applying Kirchoff's law, we get

V_{s} -V_{c}(t)=0 \\V_{R}\ does\ not\ exist\ because\ current\ in\ the\ circuit\ or\ through\ resistor\ is\ zero

V_{s}=V_{c}(t)

<u>thus voltage on the capacitor is </u>V_{c}(t)=3.0V

6 0
3 years ago
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