The answer to your question will be C. because they are very inexpensive and are readily available but they will eventually deplete because we use them faster than they can be produced we use what has been building up.
Answer:
C. A rocket traveling to the Moon
Fc=mv^2/r so we get
2000kg*(25m/s)^2/(80m)= 15625N of force
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D. March because it is just below the 1 million marker on the graph and it is the only one that low.