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Sidana [21]
2 years ago
10

What is the definition of electrical power?

Physics
1 answer:
Nonamiya [84]2 years ago
6 0
An electric power measure the rate of electrical energy transfer by an electric circuit per unit of time.
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Lithium is a metal with an oxidation number of one and oxygen is a nonmetal with an oxidation number of to which chemical formul
Mars2501 [29]
Li2O
Lithium is a metal with an oxidation number of 1+ and oxygen is a nonmetal with an oxidation number of 2-. Which chemical formula represents the compound formed by these two elements? Li2O is the correct answer because lithium has one valence electron and oxygen has six.
Hope this helped.
5 0
3 years ago
The total consumption of electrical energy in the United States is about 1.0 1019 joules per year.
dexar [7]

Answer:

a) 316880878140.2895 Joules

b) 1056.26 Joules

c) 372.80103310622 km²

Explanation:

Energy consumption

E=\frac{P}{t}\\\Rightarrow E=\frac{1\times 10^{19}}{365.25\times 24\times 60\times 60}\\\Rightarrow E=316880878140.2895\ W

Average rate of electrical energy consumption is 316880878140.2895 Joules

Total population = 300 million

E=\frac{316880878140.2895}{300\times 10^6}\\\Rightarrow E=1056.26\ J

Each person consumes 1056.26 Joules.

Efficiency = 0.85

Power from Sun

0.85\times 1000=850\ W/m^2

Area

\frac{316880878140.2895}{850}=372801033.10622\ m^2

Converting to km²

372801033.10622=\frac{372801033.10622}{1000\times 1000}=372.80103310622\ km^2

Area required to collect the electrical energy used in the United States is 372.80103310622 km²

4 0
3 years ago
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Consider a rechargeable lithium cell that is to be used to power a camcorder. Construct a problem in which you calculate the int
Kryger [21]

Answer:Consider a rechargeable lithium cell that is to be used to power a camcorder. Construct a problem in which you calculate the internal resistance of the cell during normal operation. Also, calculate the minimum voltage output of a battery charger to be used to recharge your lithium cell. Among the things to be considered are the emf and useful terminal voltage of a lithium cell and the current it should be able to supply to a camcorder.

Explanation:

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3 years ago
Which of the following describes when light bounces off a surface
elena55 [62]
This is the process of light bouncing off a surface reflection. 
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3 years ago
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1. Which of the following is carried by the waves from one place to another?
Semenov [28]

Answer:

B) Energy

Explanation:

6 0
3 years ago
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