When thomas edison was promoting the wide use of direct current, this personal enemy of edisons was the chief proponent and expert in alternating current?
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Order the following from the worst electrical conductor to the best electrical conductor? Glass, rubber, iron, dry wood
Explain the advantage of fixed pulley?
What is free fall acceleration?
By primarily using what simple machine did galileo come to the conclusion on the existence of friction?
What is Insulators ?
how sunlight produce e.m wave in vacuum?
Explain real and virtual image?
What is sonar?
While at berkeley, melvin calvin used this radioisotope to decipher many of the complex processes of photosynthesis:
If a plane is in the air and there is a fly flying inside the plane does the plane get heavier when the fly lands?
Does an aeroplane overtaking other aeroplane pass through its right or left ?
Explain optical telescopes?