An electron is accelerated using Coolidge tube of high voltage 30 KV, calculate the frequency and wave length of the produced X-ray if the electron loses one third of its velocity.

Which fators influence ocean currents

The law of conservation of energy states that energy cannot be created or , energy can be from one substance to another. the first blank is ' destroyed ' and for the second blank is ' transferred '

When you turn on a battery-operated device, an electrical circuit is