What does gravitational force depend on?
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How does birds specially adopted to flight ?
a bullet of mass m travelling at velocity v has a kinetic energy of ½mv2 when it strikes a ballistic pendulum of mass 1000 grams. The kinetic energy of the twomasses moving together just after the moment of impact is about a thousand times smaller than ½mv2. What has most of the bullets initial kinetic energy beenconverted to?
what is Potassium Carbonate ?
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?
Why is a jet of water curved on coming out of a horizontal nozzle ?
Why dies a cyclist and the cycle fall forward, if he applies the brakes suddenly ?
Why dies water rise in the trees ?
Who did first record the sound?
Why are the mountains colder than the plains ?
why current is denoted by I?
Is a sewing needle magnetic or non magnetic?
what are the passive two-wire elements?