Explain what is neutral buoyancy?
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is it possible that the clock works differently in winter and in summer ?
What is frequency of sound in air?
while climbing a hill we bend forward please explain the reason for bending
I observed this question to be asked in many exams - We cannot move even a finger without disturbing all the stars?Explain it.
How ate the weather forecasts made ?
What would happen if a disk one light second in circumference were to spin at 60 rpm?
Explain refraction?
How many pounds does one gallon of water weigh?
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 )
How does the elevation and air pressure affect the boiling point of water?
Explain the Reflection ?
How dies fanning produce a sense of coolness to the face ?