Home > categories > Minerals & Metallurgy > Magnetic Materials > more questions about magnetic?
Question:

more questions about magnetic?

1) Suppose you have 2 bars, one is a permanent magnetic, the other is not a magnet but is made from a ferromagnetic material like iron. The 2 bars look exactly alike. By using another magnet bar, how can u determine which one is permanent magnetic, which one is not.Can you determine the identities of the look-alike bar with the aid of a 3rd bar that is not a magnet, but is made from a ferromagnetic material? Give reasons!2) In a TV commercial that advertises a soda pop, a strong magnetic pick up the delivery truck carrying cans of the soft drink. The pictures switch to the interior of the truck, where cans are seen to fly upward and stick to the roof just beneath the electromagnet. Are these cans made entirely of aluminum? Justify your answer.

Answer:

Leviticus 11:7 And the pig unclean FOR YOU. Leviticus 11:12 Whatsoever hath no fins. abomination UNTO YOU. Leviticus 19:19 makes common sense for that time . ever try to wash a garment made of silk and say, blue jean material? Honestly, didn't you read the entire verse? These aren't for us, they are for Israelites who lived thousands of years ago. Says so right in the verse.
The vast majority of Christians do not, indeed, read the bible. They merely follow what their pastor preaches from the pulpit. And therein lies the whole problem. They wind up hating everyone and become discontented. Some pastors, like Fred up in Kansas are really into hate. While others (Ted Haggard, Jimmy Swaggart, Jim Bakker, etc.) are more into hypocrisy. But the result is the same.
And then, after the flood, God gave Noah the beasts to eat. DUH, honestly, haven't you ever read that? The only restriction was that it was to be bled properly. (Genesis 9:3-4) 3?Every moving animal that is alive may serve as food for YOU. As in the case of green vegetation, I do give it all to YOU. 4?Only flesh with its soul—its blood—YOU must not eat. And depending on your religion, you can eat shellfish and Jesus fulfilled the Mosiac law of Levitucus 11:7,12,19, whew, haven't you ever read that either? (Romans 10:4) 4?For Christ is the end of the Law, so that everyone exercising faith may have righteousness. Colossians 2:3-17 EDIT: I leave scriptures and I get thumbs down. NO one wants to even read the Bible when you quote it here as Christians still! Go figure !!!
1. With the 2 magnets, the like poles will repel. The magnet will always attract the ferromagnetic bar. 2. Pop cans are generally made of aluminum, which is not ferromagnetic and will not be attracted by a magnet. Even if they were steel, it would take a substantial magnetic field to attract them from several feet away. The field from a cyclotron magnet is capable of that as I recall, but not I think a scrap-metal type magnet as seen on TV.
1) when the bar1 is allowed to be brought closer to the third bar and we find attraction, the bar1 could be magnet or could not be magnet. Now reverse their orientation, if repulsion is seen then bar1 is magnet, if again attraction then bar1 is not a permanent magnet. Confirm by similar procedure that the other bar is a magnet. On the other hand if first attempt shows repulsion, then bar1 is magnet confirm with similar experiment that the other bar is not a permanent magnet. 2)No cannot be true if they are attracted by magnetic pick up coil.

Share to: