Questions and answers by

Aurora Simmons

Questions (4)

John is using a pulley to lift the sail on his sailboat. The sail weighs 150 N, and he must lift it 4.0 m.A. How much work must
1. 1 answer
2. 639 views
A river does 6,500 j of work on a water wheel every second. The wheel efficiency is 12%.A. How much work in joules can the axle
1. 2 answers
2. 1,177 views
Calculate the kinetic or potential energy in joules for each of the following situations:A. A 2.5 kg book is held 2.0 m above
1. 3 answers
2. 3,521 views
What is the kinetic energy of a 0.02 kg bullet that is traveling 300 m/s? Express your answer in joules.
1. 1 answer
2. 885 views

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