The material used in electric heater is
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Bubbles of air rise up through liquids due to
Electrons move around the nucleus in _______ motion.
Calculate the time period (in seconds) of a sound wave of wavelength 4m traveling with a speed of 500m/s
The unit of measurement of noise is
If a force acts upon two objects at rest, and having different masses for the same amount of time, then which one of the following will be the same for both the objects?
1 m/s equals ____________ km/hr
If a ball is thrown up, which of the following does not change?
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