Cereals are usually fortified with three most common minerals and vitamins which are:
1- Iron
2- Vitamin D
3- Vitamin B-12
Comparing the above to the given choices, we will find that the best answer is:
b. iron
Answer:
the answer is false :)
Explanation:
Science is based on theories and tests, if someone has a theory they will test and if it is correct yippie! and if it isn't they will redo the test over until they get it correct or unless it is unsolvable.
Answer:
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Explanation:
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Answer:
Explanation:
Given that force changes with distance. From Physics we remember that work can be defined by the following integral equation:
(1)
Where:
- Force.
- Work.
- Distance.
If we know that , then the work of the nonlinear spring is:
(2)
If we know that and , then the amount of work done by stretching the spring a distance is: