Answer:
Explanation:
Credit card companies make money in two ways. One is the fees they charge retailers, restaurants, and other sellers of goods and services when you use your card to buy something. The other is the interest and fees they charge you. Here is how credit card interest works—and how you can pay less of it.
Answer:
Explanation:
From the question we are told that
The primary voltage is 
The secondary voltage is 
Generally from the transformer equation we have that
So
=> 
Therefore the ratio of the number of turns in the secondary to the number of turns in the primary is
Answer:
Animal Cells
Explanation:
they dont have cell walls because they dont need them. Wall cells are found in plants, which animals dont need.
Answer:
80 dB
Explanation:
= Threshold intensity = 
I = Intensity of sound
= Intensity level of sound = 70 dB
Intensity level of sound is given by
If there are 10 flutes 
The sound intensity level is 80 dB
The overall efficiency of the conversion is 6.93%.
<h3>What is the overall efficiency?</h3>
We know that generation of electricity from radioactive fuels is one of the major ways by which we can generate electricity in many countries. Now the efficiency of each of the steps have been shown in the question;
- Conversion efficiency = 35%
- Transmission efficiency = 90%
- Light efficiency = 22%
Overall efficiency = (0.35 * 0.90 * 0.22) * 100 = 6.93%
The energy is obtained from;
6.7X10^13 J * 6.93/100
= 4.6 * 10^12 J
Learn more about nuclear energy:brainly.com/question/12793906
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Missing parts;
The atomic number of uranium-235 is 92, its half-life is 704 million years and the radioactive decay of l kg of 235U releases 6.7X10^13 J. Generally, radioactive material is considered safe after 10 half-lives.
Assume that a nuclear powerplant can convert energy from 235U into electricity with an efficiency of 35%, the electrical transmission lines operate at 90% efficiency, and flourescent lights operate at 22% efficiency.
1.) What is the overall efficiency of converting the energy of 235U into flourescent light?
2.) How much energy from 1 kg of 235U is converted into flourescent light?
