CO2 and N2O keep the energy that gets to Earth from the sun inside the atmosphere. Without greenhouse gases, our planet would be too cold. But due to the recent increase in greenhouse gases, more energy released from the sun is contained in the Earth, heating it up.
Answer:
Voltage across the capacitor is 30 V and rate of energy across the capacitor is 0.06 W
Explanation:
As we know that the current in the circuit at given instant of time is
i = 2.0 mA
R = 10 k ohm
now we know by ohm's law
![V = iR](https://tex.z-dn.net/?f=V%20%3D%20iR)
![V = (2 mA)(10 kohm)](https://tex.z-dn.net/?f=V%20%3D%20%282%20mA%29%2810%20kohm%29)
![V = 20 volts](https://tex.z-dn.net/?f=V%20%3D%2020%20volts)
so voltage across the capacitor + voltage across resistor = V
![V_c + 20 = 50](https://tex.z-dn.net/?f=V_c%20%2B%2020%20%3D%2050)
![V_c = 30 V](https://tex.z-dn.net/?f=V_c%20%3D%2030%20V)
Now we know that
![U = \frac{q^2}{2C}](https://tex.z-dn.net/?f=U%20%3D%20%5Cfrac%7Bq%5E2%7D%7B2C%7D)
here rate of change in energy of the capacitor is given as
![\frac{dU}{dt} = \frac{q}{C} \frac{dq}{dt}](https://tex.z-dn.net/?f=%5Cfrac%7BdU%7D%7Bdt%7D%20%3D%20%5Cfrac%7Bq%7D%7BC%7D%20%5Cfrac%7Bdq%7D%7Bdt%7D)
![\frac{dU}{dt} = (30)(2 mA)](https://tex.z-dn.net/?f=%5Cfrac%7BdU%7D%7Bdt%7D%20%3D%20%2830%29%282%20mA%29)
![\frac{dU}{dt} = 0.06 W](https://tex.z-dn.net/?f=%5Cfrac%7BdU%7D%7Bdt%7D%20%3D%200.06%20W)
Answer:
This difference is kept to a minimum because the resistance in transformers is a few tens of ohms and the resistance of modern voltmeters is of the order of MΩ.
Explanation:
A voltmeter is built by a galvanometer and a resistance in series, this set is connected in parallel to the resistance where the voltage is to be measured, therefore the voltage is divided between the voltmeter and the element to be measured, consequently the measured voltage It is less than the calculated one, since for them the resistance of the voltmeter is assumed infinite.
This difference is kept to a minimum because the resistance in transformers is a few tens of ohms and the resistance of modern voltmeters is of the order of MΩ.
After thorough researching, the mine tailings must be stored and disposed of carefully because they have lots of chemical and various toxic materials. They can also leach to the aquifers. The correct answer to the following given statement above is they have chemicals which are dangerous.
Answer:
The answer to your question is: 13.2 m/s
Explanation:
final speed (fs) = 77 m/s
t = 6.5 s
gravity (g) = 9.81 m/s2
initial speed (is) = ?
Formula
fs = is + gt from this equation we clear "is" = fs - gt
Substitution is = 77 - (9,81)(6.5)
Process is = 77 - 63.8
is = 13.2 m/s