The purpose of the split ring commutator and slip rings are updated here.
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Different kind of sounds
Students tend to think that ultrasound is a totally different kind of wave, or it is part of the electromagnetic spectrum, which is wrong!
The different kind of waves below are just different kind of sounds. So the properties of sound apply to all. Ultrasound is also sound wave, just that the frequency is greater than 20 kHz which is outside the range of audible frequencies for us.
Density of composite cube
Watch “Knife Uses Ultrasonic Waves to Cut Through Virtually Anything with Ease” on YouTube
Ultraviolet radiation in Singapore hit highest ‘extreme’ level of 15 twice in a week, Environment News & Top Stories – The Straits Times
TODAYonline | YOU LIFT ME UP
Didn’t know ultrasound has such usage 😉
Get your holy book!
