<span>If it stopped spinning completely, you would get 1/2 year daylight and 1/2 year nightime!! During daytime for 6 months, the surface temperature would depend on your latitude, being far hotter that it is now at the equator than at the poles where the light rays are more slanted and heating efficiency is lower. This long-term temperature gradient would alter the atmospheric wind circulation pattern so that the air would move from the equator to the poles rather than in wind systems parallel to the equator like they are now!</span>
Answer: a) 6.7 ; b) -9.5 * 10^-7 C induced in the dielectric on the positive plate and 9.5 * 10^-7 C induced in the other side of the dielectric close to the negative plate.
Explanation: In order to solve this problem we have to use the formule for two parallel plates capacitor, which is given by:
C= εo*A/d where A and d are the cross section and separation of the plates, respectively.
Aditionally we know that C= Q/ΔV and ΔV = E*d
By uning both expression we have:
C= εo*A/d=Q/ΔV=εo*A/d=Q/E*d then
with a dielectric between the plates, the new C is obtained by multiply by k the initial capacitance.
finally we have
εo*k*A=Q/E
then k= Q/(E*εo*A)= 6.7
In the dielectric is induced oposite charge to each plate of the capacitor, The value of induced charge in the dielectric is the same for the capacitor but with oposite sign.
Answer:
u have to add all the numbers and then round it to the nearest ten
Explanation:
<span>137200000 watts
or 137200 kilowatts
The formula for power is
P= dhrg
Where
P = Power in watts
d = density of water (~1000 kg/m^3)
h = height in meters
r = flow rate in cubic meters per second,
g = acceleration due to gravity of 9.8 m/s^2,
Plugging in the known values, we get
P = 1000 kg/m^3 * 80 m * 175 m^3/s * 9.8 m/s^2
P = 80000 kg/m^2 * 175 m^3/s * 9.8 m/s^2
P = 14000000 kg m/s * 9.8 m/s^2
P = 137200000 kg m^2/s^3
P = 137200000 watts
or 137200 kilowatts
The above figure assumes 100% efficiency which is impossible. A good efficiency would be 90% so the actual power available would be close to 0.90 * 137200 = 123480 kilowatts</span>
Answer:
I think its 12 cm itself. Because in the question it is said that the length is same in all temperature