A piano of mass 852 kg is lifted to a height of 3.5 m. How much gravitational potential energy is added to the piano? Accelerati
1 answer:
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Answer:
D. (7 ÷ 9) × 100
Explanation:
In order to solve this problem we need the answers of the problem, performing an internet search this problem is found, with the different answer options
A. (7 − 9) × 100
B. (9 − 7) × 100
C. (9 ÷ 7) × 100
D. (7 ÷ 9) × 100
Returning to the problem of the total energy of 9V only 7 volts were used. If we make a rule of three we realize that:
x = 77.77%
In this way we determine that the answer is D.