If unlike magnetic poles attract, how does a magnet attract an un-magnetized piece of metal such as a piece of iron?
A
It does this via a process called magnetic induction which temporarily makes a magnet of the metal.
B
It can only do this if the piece of metal already is a magnet internally.
C
What actually happens is that the un-magnetized metal attracts the magnet rather than the other way around.
D
Only powerful electro-magnets, such as are found in wrecking yards, can attract unmagnetized metals.
Answers: 2
Physics, 22.06.2019 03:30
Two polarizers are oriented at 24.0∘ to one another. light polarized at a 12.0-degree angle to each polarizer passes through both. what is the transmitted intensity (%)?
Answers: 2
Physics, 22.06.2019 06:30
2kg of refrigerant 134a undergoes a polytropic process in a piston-cylinder assembly from an initial state of saturated vapor at 2 bar to a final state of 12 bar, 80 degree c. a)determine the work for the process in kj. b)sketch the process on a p-v diagram.
Answers: 2
Physics, 22.06.2019 08:20
A3030 cmcm wrench is used to loosen a bolt with a force applied 0.30.3 mm from the bolt. it takes 6060 nn to loosen the bolt when the force is applied perpendicular to the wrench. how much force would it take if the force was applied at a 3030 degree angle from perpendicular? a 3030 cmcm wrench is used to loosen a bolt with a force applied 0.30.3 mm from the bolt. it takes 6060 nn to loosen the bolt when the force is applied perpendicular to the wrench. how much force would it take if the force was applied at a 3030 degree angle from perpendicular?
Answers: 3
If unlike magnetic poles attract, how does a magnet attract an un-magnetized piece of metal such as...
Mathematics, 18.08.2019 09:50
Mathematics, 18.08.2019 09:50
Mathematics, 18.08.2019 09:50
Mathematics, 18.08.2019 09:50
Mathematics, 18.08.2019 09:50
Mathematics, 18.08.2019 09:50
Mathematics, 18.08.2019 09:50
Mathematics, 18.08.2019 09:50
Mathematics, 18.08.2019 09:50
Chemistry, 18.08.2019 09:50
Mathematics, 18.08.2019 09:50
Social Studies, 18.08.2019 09:50