Answer:
40 kilograms of fuel are required to meet their energy needs for the month of April.
Explanation:
The month of April has 30 days and the full energy needed by the family is determine by the following combustion formula, derived from dimension analysis:
(1)
Where:
- Mass of the fuel, measured in kilograms.
- Calorific value of the fuel, measured in kilojoules per kilogram.
- Daily fuel energy, measured in kilojoules.
- Number of days of the month, dimensionless.
If we know that , and , then the amount of fuel required to meet their energy needs for the month of April is:
40 kilograms of fuel are required to meet their energy needs for the month of April.
Answer:True
Explanation:
Most of the transition metals—those metals in the center d-block of the periodic table—are polyvalent. Since they can form cations with different charges, those charges must be specified when naming the ions and when naming compounds containing those ions.
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<u>Answer:</u> The correct answer is Option 2.
<u>Explanation:</u>
Radioactive substances are unstable in nature and tend to get stable by some nuclear reactions.
Nuclear reaction are the reactions which changes the nucleus of an atom. There are two nuclear reactions: Nuclear fission and Nuclear fusion.
These two processes can make a radioactive sample can convert it into a non-radioactive sample.
Nuclear fission reactions: In these reactions a larger nuclei (parent nuclei) splits into two or more stable daughter nuclei.
Nuclear fusion reactions: When two or more smaller nuclei combine to form one larger nuclei, these reactions takes place.
In the question, it is asked the characteristic of a non-radioactive daughter isotope after it is formed from a parent isotope. The parent isotope is undergoing nuclear fission reaction and is forming a stable nucleus.
Hence, the correct answer is Option 2.
The conversion factor to use in this case is:
charge / mass = 5.4 x 10^6 z / w
We are given that:
charge = 4.5 x 10^−15 z
Therefore the mass is calculated by combining the two
equations:
4.5 x 10^−15 z / mass = 5.4 x 10^6 z / w
<span>mass = 8.33 x 10^-22 w</span>
Answer
Associate of Science
Explanation
An Associate of Science gears a students towards math and science related careers. It requires the student to attend more science and math classes. STEM degrees are of high demand in many industries. Computing and engineering degrees program are in greatest demand and students have high opportunities of acquiring scholarships for study.