Physics, 13.03.2020 19:17 ooooooo828282828
Ray decides to paint the outside of his uncle's house. He uses a 4.0-m-long board supported by cables at each end to paint the second floor. The board has a mass of 21 kg. Ray (70 kg) stands 1.0 m from the left cable.
1. What is the force that the left cable exerts on the board?
2. What is the force that the right cable exerts on the board?
Answers: 3
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Scout feels ill one day before school. her mother puts a thermometer in her mouth and the temperature begins to climb to 100Β°f. what is happening between the cooler thermometer and scout's body? a) scout's body is applying a force to the particles in the thermometer. b) kinetic energy is being transferred from her mouth to the thermometer. c) potential energy is being lost by the thermometer and gained by scout's body. d) the potential energy stored in foods is converted to mechanical energy to raise the mercury in the thermometer.
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Ray decides to paint the outside of his uncle's house. He uses a 4.0-m-long board supported by cable...
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