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secondary 2 | Maths
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Julia
Julia

secondary 2 chevron_right Maths chevron_right Singapore

Not a math qn lol but please explain if you know. Thanks !

Date Posted: 5 years ago
Views: 426

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snell
Snell's answer
333 answers (A Helpful Person)
1st
hope this helps.
Julia
Julia
5 years ago
Thank you!!
snell
Snell
5 years ago
u r welcome!

can u pls upvote(green tick) this ans?
snell
Snell
5 years ago
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
snell
Snell
5 years ago
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

:)
Julia
Julia
5 years ago
Oh hahaha. Thanks for sharing, I might have forgotten my primary school science :P
snell
Snell
5 years ago
magnetism is in Ch 20, 21 and 22 of O level Physics too. :)
*dunno about IP
Julia
Julia
5 years ago
Oo okay