Physics, 15.04.2020 19:07 haileysolis5
Two magnets are stuck together when a physics student pulls them apart and holds them close to each other so she can still feel them pulling on each other. How does pulling the magnets apart affect their magnetic potential energy?
A. stays the same
B. decreases by one half
C. magnets cannot create potential energy
D. magnets only have potential energy when they are touching each other
E. increases
Answers: 3
Physics, 21.06.2019 23:30
A175 g lump of molten lead at its melting point (327 c) is placed into 55.0 g of water at 20.0 c. the specific heat of lead is 130.j/kg c and the hf of lead is 20,400 j/kg. when the lead and the water have reached equilibrium, what is the temperature of the mixture?
Answers: 3
Physics, 22.06.2019 07:00
Which statement is best supported by the information in the chart? wave y is moving the fastest. wave x is moving the fastest. all of the waves are moving at the same speed. all of the waves have the same value of wavelengths per second.
Answers: 3
Physics, 22.06.2019 10:00
Amira pulls a 3 pound wagon 4 feet. how much work has she done?
Answers: 2
Physics, 22.06.2019 13:30
Which is not an example of how an object gains elastic potential energy by stretching? a. jumping on a pogo stick b. pulling on a rubber band c. jumping on a trampoline
Answers: 1
Two magnets are stuck together when a physics student pulls them apart and holds them close to each...
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