Physics, 22.10.2020 23:01 luisdavidflores
What force do scientists think was responsible for clumping matter together to form the first starts after the Big Bang ?
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Physics, 22.06.2019 16:00
From the perspective of an employee that effective channeling of work related information and concerns
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Physics, 22.06.2019 19:00
1) what is the power in horsepower of a 100 watt light bulb? what is the power in kilowatts of a 200 horsepower engine? 2) if a cars engine is providing 3000 n of force to keep the car moving at 5 m/s, what is the engine’s effective power? 3) how many gallons of water will be pumped from a well 30 feet deep by a 1/2 hp engine in 1 minute? (1 gallon weighs 8.34 pounds)
Answers: 1
Physics, 23.06.2019 07:40
Consider lifting a box of mass m to a height h using two different methods: lifting the box directly or lifting the box using a pulley (as in the previous part). what is wd/wp, the ratio of the work done lifting the box directly to the work done lifting the box with a pulley?
Answers: 2
Physics, 23.06.2019 14:50
When oxygen reacts with hydrogen, it has the capacity to release 29 kilojoules of energy. inside a fuel cell, oxygen reacts with hydrogen to produce 23 kilojoules of useful energy. the rest of the energy is lost as heat. what's the efficiency percentage of the fuel cell?
Answers: 1
What force do scientists think was responsible for clumping matter together to form the first starts...
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