what does quantity of matter in an object denote
what is the relative speed between 2 serial electrons running in same direction along the wire?
In which medium does the sound travel fatest?
Explain what is the heterogenous?
When a toy balloon is filled with air and then the air is allowed to go out, why dies the balloon whiz away ?
What is amplitude?
Who did first record the sound?
Explain the difference between isolation transformers and step up or step down transformer?
Why is ice wrapped in gunny bags ?
Why does the moon shine, evening though it has not light of its own ?
what is momentum?
How d o the radio-waves pass through walls ?
Two parallel beams of electrons are moving in the same direction. Does they repel or attract each other?