Physics, 24.11.2020 02:30 jaydenrobinettewca
A 15kg block is pulled by a donkey with a uniform speed along a rough horizontal surface with a force inclined at 45° to the horizontal. The coefficient of friction between the two surface is 0.50. If it covers 15m in 5 minutes. Calculate the work done by the applied force.
Answers: 1
Physics, 22.06.2019 03:30
Scout feels ill one day before school. her mother puts a thermometer in her mouth and the temperature begins to climb to 100°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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Physics, 22.06.2019 08:00
Who was the first scientist to measure speed as distance over time?
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Physics, 22.06.2019 17:40
You throw a baseball directly upward at time =0 at an initial speed of 14.9 m/s. what is the maximum height the ball reaches above where it leaves your hand? ignore air resistance and take =9.80 m/s2.
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A 15kg block is pulled by a donkey with a uniform speed along a rough horizontal surface with a forc...
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