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Answer:
gravitational potential energy
The skier possesses gravitational potential energy at the top of a slope, which transforms into kinetic energy as he moves down the slope.
Answer:
The time required for the colony to grow two million bacteria is 29.22.
Explanation:
Time required for the colony to grow can be calculated by the following equation:

Here t is time, N = 2 million (require bacteria population).

t ≈ 29.22
Time taken by bacteria to grow is 29.22.
mercury and venues are the only one without moons