What is the direction of null vector?
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Explain one advantage of a scanning electron microscope over a transmission electron microscope?
Define Self-Luminous body ?
Why does the moon shine, evening though it has not light of its own ?
Why does a tea kettle sing?
Why it becomes bitterly cold as soon as the snow starts melting?
How does barometer forecast the weather ?
Does an aeroplane overtaking other aeroplane pass through its right or left ?
What two properties of electromagnetic waves are used to attach info to radio signals?
The system shown in the figure is in equilibrium. The metal spheres are identical and each has a mass of 2 kg. The surface areas of the pistons are equal and 100 square centimeters each. The density of water is 1 g per cubic centimeter. Assuming that the frictions and masses of the pistons are negligible, what is the mass of G? ( g = 10N/kg )
WHO IS THE FATHER OF CALCULUS,LIBNIEZ OR NEWTON?
What do you mean by diffraction and what is/are the proper condition/conditions for it?
a car is travelling at 72kmph, and if that car slows down to 60kmph it takes an extra 1 hour to cover that same distance. at 72kmph, how long did it take for the car to cover that distance?