Biology, 04.10.2019 22:00 genyjoannerubiera
Angela tries to pick up a copper penny using a bar magnet, but the penny does not move. then, she tries to pick up an iron nail using the bar magnet, and the nail lifts up toward the magnet. her teacher tells her that the magnet lifts the iron nail because it is a ferromagnetic material. which of the following best describes a ferromagnetic material?
a.) a material that easily conducts electricity
b.) a material with naturally strong magnetic properties
c.) a material made of non-metals that produce magnetic fields
d.) a material that produces its own magnetic field
Answers: 1
Biology, 22.06.2019 00:00
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Biology, 22.06.2019 11:30
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Body temperature is tightly regulated in mammals for example when external temperatures drop too much the body of a mammal response by in order to it's core temperature.
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Angela tries to pick up a copper penny using a bar magnet, but the penny does not move. then, she tr...
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