Using newton's version of kepler's third law ii the sun orbits the center of the milky way galaxy every 230 million years at a distance of 28,000 light-years. use these facts to determine the mass of the galaxy. (as we'll discuss in chapter dark matter, dark energy, and the fate of the universe, this calculation actually tells us only the mass of the galaxy within the sun's orbit.) m= solar billion years
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Physics, 22.06.2019 12:20
What is the coefficient of kinetic friction μk between the block and the tabletop?
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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)
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Physics, 23.06.2019 01:30
Mackinzie walks 4 blocks west, then 2 blocks south, then 4 blocks east, and,finally, 1 block south. what is the magnitude of her total displacement duringthis walk (in blocks)?
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Using newton's version of kepler's third law ii the sun orbits the center of the milky way galaxy ev...
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