During world war 2 posters of Rosie the Riveter were used to...

The reason lying, cheating, breaking promises, and stealing are so important to ethics is because

romanna [79]

Lying, breaking guarantees, cheating, and stealing are thought to be immoral activities. These three are so critical to morals is on account of this constitute the types of immorality that we most much of the time experience in our ordinary live thus they hit 'close to home'.

5 0

2 years ago

Om "On Becoming an Inventor" supports the idea that Dean's time at Worcester Polytechnic Institute was very useful to him even i

Galina-37 [17]

The line that supports the idea is I found that at college I could get help from my teachers with solving business problems and learning new techniques for designing new things.

<h3>What is an inventor?</h3>

An inventor refers to the person who needs ideas and the vision to design a solution around those ideas.

The line which supports the idea that Dean's time at Worcester Polytechnic Institute was very useful even if he did not graduate is I found that at college I could get help from my teachers with solving business problems and learning new techniques for designing new things.

Therefore, B is the correct option.

Learn more about Inventor here:

brainly.com/question/1639027

#SPJ1

7 0

1 year 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:

Given Data:

Resistance=R=100 ohms

Capacitance=C=100F

Part.A: Time constant=T=?

Time constant:

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 $T=100*1$

$T=100seconds$

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

Given Data:

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.

Short circuit:

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 $I(t)=0.03A\ OR\ 30mA$

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

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

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

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

thus voltage on the capacitor is $V_{c}(t)=3.0V$

6 0

2 years ago

A hint or memory prompt that helps us to recall something we've forgotten is called a

lina2011 [118]

The correct answer is a mnemonic device.

A mnemonic device refers to any memory enhancement technique that helps us encode and remember information. A common example of a mnemonic device is using the sentence "My very educated mother just showed us nine planets " to remember the names of the planets in the solar system. The first letter of each of the words in the sentence corresponds to the letters each of the planet's name begins with (Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Pluto).

6 0

2 years ago

HELP !!! how did land play a role in the patroon system?

Pie

The Patroon System was a land granting system that gave large pieces of land in the 17th century, in exchange for settlement

6 0

2 years ago