snell's answer to Julia's Secondary 2 Maths Singapore question.
done
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hope this helps.
Date Posted:
5 years ago
Thank you!!
u r welcome!
can u pls upvote(green tick) this ans?
can u pls upvote(green tick) this ans?
thank you for ur upvote :)
glad that u understood my explanation.
relative speed is not an usual topic in Sec 2 sci,
bcos not easy to understand relative speed
glad that u understood my explanation.
relative speed is not an usual topic in Sec 2 sci,
bcos not easy to understand relative speed
ohya, b4 i forget:
copper is a metal, but it is not a magnetic material.
the magnetic materials are:
1. Iron
2. Steel (alloy of iron and carbon)
3. Nickel
4. Cobalt
5. alloys that contain NCIS
since magnetic force can pass thru a glass sheet (a non magnetic material) , it shld also pass thru copper sheet too.
just sharing
:)
copper is a metal, but it is not a magnetic material.
the magnetic materials are:
1. Iron
2. Steel (alloy of iron and carbon)
3. Nickel
4. Cobalt
5. alloys that contain NCIS
since magnetic force can pass thru a glass sheet (a non magnetic material) , it shld also pass thru copper sheet too.
just sharing
:)
Oh hahaha. Thanks for sharing, I might have forgotten my primary school science :P
magnetism is in Ch 20, 21 and 22 of O level Physics too. :)
*dunno about IP
*dunno about IP
Oo okay
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