A melon is projected into the air with 100 J of kinetic energy in the presence of air resistance. When it returns to its initial level its kinetic energy is

A) less than 100 J.
B) more than 100 J.
C) 100 J.
D) need more information


Answer: A

Physics & Space Science

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Work-Energy Theorem: How large a net force is required to accelerate a 1600-kg SUV from rest to a speed of 25 m/s in a distance of 200 m?

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A) 5 B) 7 C) 10 D) 11 E) 13

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A television advertisement claiming that a product is light-years ahead of its time does not make sense because ________

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