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What is the minimum amount of energy required for an 80-kg climber carrying a 20-kg pack to climb Mt.Everest,8 850 m high?
Q2: According to present theories, there is a
Q6: Which of the following is an example
Q33: The accelerating force of the wind on
Q37: A vault is opened by applying a
Q43: Potential terrorists are usually classified as _
Q44: The pion (m<sub>p</sub> = 140 MeV/c<sup>2</sup>) is
Q68: A 0.12-m-radius grinding wheel takes 5.5 s
Q73: The half-life of radioactive Technetium-99 is 6.0
Q73: The size and sign of the charge
Q75: A jet of water flowing from a