Answer: 5.52 *10^-6J
Explanation: In order to explain this problem we have to take into account the expression for the stored energy in a capacitor which is given by:
U=Q^2/2*C=2.76*10^-6 J ( initial stored energy)
We also know that C=Q/V=221*10^-9/25 V=8.84*10^-9 F
When the separation between the plates is increased 3 times, the capacitanve decrease a factor 1/3 then the stored energy is:
U=Q^2/(2*C/3)= 3*Q^2/(2*C)=3*(221*10^-9)^2/2*8.84*10^-9=8.28*10^-6J ( final stored energy)
The change in the stored energy is : 8.28*10^-6J-2.76*10^-6 J=
=5.52 *10^-6 J
Answer:
it is the set of rules based on precise mathematical proportions that controls the appearance of images
Answer:
<em>It will cost $20.81</em>
Explanation:
<u>Cost of Electricity</u>
The rate of the cost of electricity is usually expressed in $/KWH because the consumption of electricity is measured in Kilowatts-hour.
If a 25W porch light is on day and night for a full year, the electricity consumption is:
25W*24 H/Day*365 Day/year* 1 year=219,000 WH
converting to KWH: 219,000 WH = 219,000 /1000 KWH = 219 KWH
The rate is $0.095/KWH, thus:
The cost of electricity is 219 KWH*$0.095/KWH= $20.81
It will cost $20.81
I<span>f you have studied enzymes its a similar concept. Cells have proteins on the surface of their cell which hormones bind to (called receptors) The receptor must be a complimentary shape to the hormone for it to bind. Only target cells have the receptor with the complimentary shape so only these cells will be affected.</span>
<span>Rutherford felt that the atom had an internal structure much like our solar system, with a nucleus surrounded by orbiting electrons. Today, we know that the electrons inhabit specific shells and sub-shells, and there is an order to which these electrons are located.</span>