Answer: Vladimir Lenin
Explanation:
by signing peace treaties with their rivals
by learning philosophy
by making war on their rivals
Answer:
Strong army and geography.
Explanation:
The earliest Chinese people did not have to worry about invasions from foreign countries because of their strong army and geography. The Chinese army present in ancient times were very strong and able to defend their lands. Chinese also build china wall in order to protect their lands from the invasion of other people. The geography of china also made difficult for the invaders to capture china.
Answer:
geographic features protected the north china plain.
Explanation:
Answer:
Surge
Explanation:
This phenomenon has indeed been an issue of the most concern considering the pandemic that has affected the world recently.
Medically, if there's is a surge in mental health aspects of public health emergencies and disasters, it implies there may be more deaths for the communities affected.
Consider that the capacitor is initially fully charged to 3.00 V. The switch is opened at ???????? = 0. Using the appropriate given formulas, write down below the voltage ????????cc(????????) on the capacitor and the current ????????(????????) in the circuit.
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.
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
so
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
putting values, we get
Current in the circuit is
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
thus voltage on the capacitor is
Dont just copy from a websiye ok
NO LINKS OR YOU GET A REPORT
Answer:
Yes and No
Explanation:
Did you know that globalization started in 1492, according to many historians?
Globalization can be could or bad depending on the situation but mostly it is good so if its asking yes or no or sometimes or maybe or something like that i would say it depends so yes and no
( hope it helps sorry if it doesn't)