Answer: #12 AWG Wire.
Explanation:
Which two energy sources together provided more than 50 per cent of the energy needs of the USA in the year 1980
Hydropower 5%
Nuclear 4%
Other (wind, solar, geothermal) 1%
Coal 23%
Natural Gas 25%
Oil 42%
Options:
a) Nuclear and natural gas
b) Oil and coal
c) Hydropower and oil
d) Natural gas and coal
The two energy sources that combined together to provide more than 50 percent of the energy needs of the USA in the year 1980 is: b) Oil and coal.
What is energy?In Science, energy can be defined as a measure of the ability of a physical body to do work. This ultimately implies that, energy must be possessed or transferred to a physical object or physical body before it can be used in doing a work or heating a system.
The forms of energy.In Science, there are different forms of energy and these include the following;
Wind energyKinetic energy.Gravitational energy.Potential energy.Elastic energyChemical energy.Solar energy.Nuclear energy.Based on the information provided, the two energy sources that would provide more than 50 percent of the energy needs of the USA in the year 1980 when added together should be calculated as follows:
Nuclear and natural gas = 4% + 25% = 29% (less than 50 percent).
Oil and coal = 42% + 23% = 75% (more than 50 percent).
Hydropower and oil = 5% + 42% = 49% (less than 50 percent).
Natural gas and coal = 25% + 23% = 48% (less than 50 percent).
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What is a shotstring?
Answer:
837
Explanation:
Answer: What you see when you test a gun on a pattern plate.
Explanation: A guess
Your job is to order and connect lead-acid cells used to supply an uninterruptible power supply (UPS). The battery output voltage must be 126 V and have a current capacity of not less than 250 A-hr. Each cell has a rating of 2 V and 100 A-hr. How many cells must be ordered and how would you connect them?
189 cells must be ordered and how would you connect them.
What is lead acid cells?Lead acid batteries are affordable, practical, and suitable for a wide range of battery power applications. They are arguably best recognized for their use in traditional internal combustion automobiles, where they provide the power for all of the electronics, starting, and other functions.
The lead acid battery has several benefits for starting internal combustion engines as well as many other applications. They have a big current and surge capability, which is perfect.
Lead acid batteries are a well-recognized technology that may be produced with ease using tools that are rather low-tech.
Therefore, 189 cells must be ordered and how would you connect them.
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https://brainly.com/question/12699760
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