Complete Question
The light energy that falls on a square meter of ground over the course of a typical sunny day is about 20 MJ . The average rate of electric energy consumption in one house is 1.0 kW .
If light energy to electric energy conversion using solar cells is 12 % efficient, how many square miles of land must be covered with solar cells to supply the electrical energy for 350000 houses? Assume there is no cloud cover.
Answer:
The area is 
Explanation:
From the question we are told that
The efficiency is 
12%
The number of houses is 
The light energy per day is 
The average rating of electric energy for a house is 
Generally the electric energy which the solar cells covering 
produces in a day is
Energy for required by one house for one day is
Energy needed for 350000 house is
The area covered is mathematically represented as
Answer:
The vasa vasorum, the collection of small arteries and veins supplying blood to the smooth muscle and fibroblasts within blood vessels, is found in the <u>tunica externa</u>.
Explanation:
In order to understand the answer above let explain the concept of tunica externa
This in Latin means outer coat and can also be called 'tunica adventitia' which also means "additional coat in Lain",it is the outermost layer of the a blood vessel covering the tunica media(This is a Latin word translated as middle coat in English which is the middle layer of an artery or a vein it lies between the tunica externa and the tunica initima which is the innermost part of the artery or vein).
An Artery
We can define an artery as a blood vessel that transports blood from the heart to other parts of the body.
An Vein
We can define a vein as a blood vessel that transports blood to the heart
and we can define blood vessel as a tube that carries blood in the circulatory system.
Answer:
period of rotation is 9.9843 years
Explanation:
Given data
sides = 1.0×10^12 m
to find out
period of rotation
solution
first we use the gravititional formula i.e
F(g) = 2 F cos 30
here F = G × mass(sun)² / radius²
F = 6.67 × 
× (1.99× 
)² / (1× )²
so
F(g) = 2 × 6.67 × × (1.99× )² / (1× )² × (1.73/2)
F(g) = 4.57 × 
N
and
by the law of sines
r/sin30 = s/sin120
so r will be
r = 1.0×10^12 (0.5/.87)
r = 5.75 × 
m
we know that gravititional force = centripetal force
so here
centripetal force = mv² /r
centripetal force = 1.99× v² / 5.75 ×
so
4.57 × = mv² /r
4.57 × = 1.99× v² / 5.75 ×
v² = 4.57 × × 5.75 × ![10^{11} / 1.99× [tex]10^{30}](https://tex.z-dn.net/?f=10%5E%7B11%7D%20%2F%201.99%C3%97%20%5Btex%5D10%5E%7B30%7D)
and
v = 11480 m/sec
and we know period of rotation formula
t = d /v
t = 2 
r /v
t = 2 × × 5.75 × [tex]10^{11} / 11480
t = 314 × [tex]10^{5} / 31536000 year
t = 9.9843 year
so period of rotation is 9.9843 years
Its true because I just took the the test and it was right
I hope i helped you got it right
Answer:
0.3 A
Explanation:
Build the circuit attached. Make sure the switch is turned off as you build the circuit. Set the Selected battery voltage to 10 volts.
A. Based on the number on the fuse, what do you think is the maximum current allowed in this circuit?
Solution:
A fuse is a safety device which is used in circuits for preventing very high currents which can cause overloading or start a fire. A fuse is made up of a low resistance thin piece of metal such that the flow of high current can cause the metal to melt leading to an open circuit. A fuse lets current flow up to a maximum value before it melts and the circuit will be broken.
From the image attached, since the maximum rating of the fuse is 0.3 A, hence the maximum current that can flow through the circuit is 0.3 A.
