Explain what affect does electricity have on soil?
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Why dies a man carrying a load on his back lean forward ?
Give an example of transverse wave?
Two parallel beams of electrons are moving in the same direction. Does they repel or attract each other?
What is the difference between the atomic theory and the kinetic theory?
types of engines available...?and their functions
Explain the Transparent ?
Why dies a cyclist and the cycle fall forward, if he applies the brakes suddenly ?
What is ion pair energy?
Explain the Fluorescence ?
What makes the telegraph wires hum?
What is a Pressure ?
Define Penumbra ?