Answer:
The capacitance is cut in half.
Explanation:
The capacitance of a plate capacitor is directly proportional to the area A of the plates and inversely proportional to the distance between the plates d. So if the distance was doubled we should expect that the capacitance would be cut in half. That can be verified by the following equation that is used to compute the capacitance in such cases:
C = (\epsilon)*(A/d)
Where \epsilon is a constant that represents the characteristics for the insulator between the plates. A is the area of the plates and d is the distance between them. When we double d we have a new capacitance, given by:
C_new = (\epsilon)*(A/2d)
C_new = (1/2)*[(\epsilon)*(A/d)]
Since C = (\epsilon)*(A/d)] we have:
C_new = (1/2)*C
Answer:
Temperature will be 305 K
Explanation:
We have given The asteroid has a surface area ![A=7.70m^2](https://tex.z-dn.net/?f=A%3D7.70m%5E2)
Power absorbed P = 3800 watt
Boltzmann constant ![\sigma =5.67\times 10^{-8}Wm/K^4](https://tex.z-dn.net/?f=%5Csigma%20%3D5.67%5Ctimes%2010%5E%7B-8%7DWm%2FK%5E4)
According to Boltzmann rule power radiated is given by
![P=\sigma AT^4](https://tex.z-dn.net/?f=P%3D%5Csigma%20AT%5E4)
![3800=5.67\times 10^{-8}\times 7.70\times T^4](https://tex.z-dn.net/?f=3800%3D5.67%5Ctimes%2010%5E%7B-8%7D%5Ctimes%207.70%5Ctimes%20T%5E4)
![T^4=87.0381\times 10^8](https://tex.z-dn.net/?f=T%5E4%3D87.0381%5Ctimes%2010%5E8)
![T=305K](https://tex.z-dn.net/?f=T%3D305K)
So temperature will be 305 K