Answer: 0.8 nC
Explanation: In order to explain this problem we have top use the expression for the capacitor of parallel plates, which is given by:
C=εo*A/d where A and d are the area and the separation of the plates.
Then we have
V=Q/C so ΔV= Q* Δd/(εo*A)
Q= 100* 0.054*8.85*10^-12/( 0.06)=0.8 nC
Convection occurs through heat transfer due to a difference in density in the fluids.
Consider a pot of water being heated. The water in the pot gets heated rises ,it provides energy for the particles in the water to move and thus the water expands which results in the density of the water becoming less. These particles rise up till the top of the pot owing to the property of very less density of the particles.
Then after some time, it cools down which results in increase of the density of the particles. The heavier denser particles sink to the bottom and is once again heated and rises and this process continues unless all the water particles in the pot are heated and warmed.This transfer of energy by the movement of particles cause convection.
During the day the heat surface above the earth exposed to the sun's rays is heated. This rise in temperature,decreases the density of the air and the warm air rises.
This air cools down and becomes denser. This dense cool air sink back and forces the warm air to rise again.
This transfer of movement of particles causes convection. This cycle is the cause of winds and thus energy is transferred through the atmosphere.
Answer:
C. Planet D has the greatest mass and will exert a greater gravitational force
Answer: Current in a wire
We can use the same right-hand rule as we did for the moving charges—pointer finger in the direction the current is flowing, middle finger in the direction of the magnetic field, and thumb in the direction the wire is pushed.
Explanation:
Answer:
The maximum voltage is 41.92 V.
Explanation:
Given that,
Peak voltage = 590 volts
Suppose in an L-R-C series circuit, the resistance is 400 ohms, the inductance is 0.380 Henry, and the capacitance is 
.
We need to calculate the resonance frequency
Using formula of frequency
Put the value into the formula
We need to calculate the maximum current
Using formula of current
Impedance of the circuit is
At resonance frequency 
We need to calculate the maximum voltage
Using ohm's law
Hence, The maximum voltage is 41.92 V.
