Home > categories > Minerals & Metallurgy > Copper Bars > An aluminum bar 3.90{\rm m} long has a rectangular cross section 1.15{\rm cm} by 5.09{\rm cm} .?
Question:

An aluminum bar 3.90{\rm m} long has a rectangular cross section 1.15{\rm cm} by 5.09{\rm cm} .?

1.What is its resistance? I got 1.75*10^-42. What is the length of a copper wire 1.53{#92;rm mm} in diameter having the same resistance?I‘m stuck on the second part

Answer:

well i understand why you are worried about her suffocating with the whole pulling it over her face, but i think what you should do is lieng her in her cot when she is awake with no blanket and just her wearing her bed clothes. Then she will realise that she is suppose to not it over her face PS i dnt really knw what i am tlking about I'm only 13 lol
Chancia, that's a strange question to ask in Business Finance. You placed your question in the wrong forum of Yahoo Answers. Try the question again in the category 'Science Mathematics,' subcategory 'Mathematics,' or in 'Education Reference,' subcategory 'Homework Help,' that's where you are far more likely to find an expert in that field.
Sleep Sacks and sleepers sound like great ideas. She may just like to feel the security of a blanket over her face. Does she have a little stuffed animal with a small blanket attached? Can't remember the name of it. She might like to sleep with one of those if the manufacturer labels it ok to do so for her age. Good Luck! :( Wish we had a baby:(
My daughter started this when she was 6 1/2 weeks. She is now 10 years old and still does it. I was told not to worry, but I did. I ended up in the store putting all of the blankets up to my face and trying to breathe through them until I found one that was a cotton weave blanket with a loose weave that was very easy to breathe through (even when wet). In the winter I put her in the big warm sleepers for warmth and her blanket was for her to put over her head. I know it sounds crazy and I admit, people will look at you as you are sifting through balnkets and basically trying to suffocate yourself with them, but it is worth the piece of mind and I actually laugh now thinking about it. If I can find the blanket that I actually ended up with, I will edit. It was white and like a cotton thermal weave blanket with a very loose weave.so loose that you could stick your finger through it pretty easily. It was surprisingly warm. If I remember correctly, the receiving blankets were one of the worst.
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