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NeTakaya
3 years ago
11

If you were to push a pile of books across a table, in which location would this be the easiest?

Physics
1 answer:
kati45 [8]3 years ago
6 0

same amount is the answer

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Which of the following is not a primary cause of eroding rock
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The answer to this is Animal habitation 
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If a 375 watt heater has a current of 5.0 A, what is the resistance of the heating element?
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Two satellites are in circular orbits around the earth. the orbit for satellite a is at a height of 542 km above the earth's sur
Evgen [1.6K]
Let R be radius of Earth with the amount of 6378 km h = height of satellite above Earth m = mass of satellite v = tangential velocity of satellite 
Since gravitational force varies contrariwise with the square of the distance of separation, the value of g at altitude h will be 9.8*{[R/(R+h)]^2} = g' 
So now gravity acceleration is g' and gravity is balanced by centripetal force mv^2/(R+h): 
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Satellite B: h = 838 km so R+h = 7216 km = 7.216 e6 m g' = 9.8*(6378/7216)^2 = 8.66 m/sec^2 so v = sqrt(8.32*7.216e6) = 7748.36 m/s = 7.79 km/sec
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Which most likely indicates a chemical change has occurred?
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green liquid becoming a red liquid

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Read 2 more answers
How can you change the phases of matter using thermal energy
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Answer:

These energy exchanges are not changes in kinetic energy. They are changes in bonding energy between the molecules. If heat is coming into a substance during a phase change, then this energy is used to break the bonds between the molecules of the substance.

8 0
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