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A room of 1.5 litres contains gas with pressure 10^5 Pa.If the gas particle has average speed of 750 m/s,then gas mass that trapped in the room is...gram A.0.8 B.0.7 C.0.6 D.0...

A straight wire of 120 cm carries directional current of 0.25A.If the space is affected by magnetic field of 0.5T that perpendicular to the current,thus the magnitude of Lorentz force of the wire...

A room of 1.5 litres contains gas with pressure 10^5 Pa.If the gas particle has average speed of 750 m/s,then gas mass that trapped in the room is...gram A.0.8 B.0.7 C.0.6 D.0...

A straight wire of 120 cm carries directional current of 0.25A.If the space is affected by magnetic field of 0.5T that perpendicular to the current,thus the magnitude of Lorentz force of the wire...

A car moves with velocity v and it decreases to 1/3 after a distance x because the car's braked.The distance taken from the start until the car stop is...x A.8/9 B.9/8 C.8/10 D...

Magnetic flux produced by magnetic filed B that through perpendicularly a surface of width A is P.If the magnetic field is reduced into B/2,but the width surface enlarged to 2A,then flux produced...

A 0.500 kg sphere moving with a velocity (2.00 - 2.60 + 1.00) m/s strikes another sphere of mass 1.50 kg moving with a velocity (-1.00 + 2.00 - 3.00) m/s. (a) If the velocity of the 0.500...

1.A waterfall of 8m with water debit 10 m^3/s used to turn a micro-electrical generator.If 10% of the energy transformed to electricity and g=10 m/s^2,the the output power is...kW A.70 B...

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