Physics A 4 kg object is moving horizontally with a speed of 5 m/s. To increase its speed to 10 m/s, the amount of net work required to be done on this object is: 50 J 100 J 150 J 75 J 50 J 100 J 150 J 75 J ANSWER DOWNLOAD EXAMIANS APP
Physics A boat loaded with rocks floats in the middle of a swimming pool. A man in the boat throws the rocks overboard. The level of water in the pool will Remains the same Decrease First decrease and then increase Increase Remains the same Decrease First decrease and then increase Increase ANSWER DOWNLOAD EXAMIANS APP
Physics A solid ball of metal has a spherical cavity inside it. When the ball is heated the volume of the cavity will Remain unaffected Have its shape changed Decrease Increase Remain unaffected Have its shape changed Decrease Increase ANSWER DOWNLOAD EXAMIANS APP
Physics The atmospheric air is held to the Earth by : Rotation of the Earth Gravity Clouds Winds Rotation of the Earth Gravity Clouds Winds ANSWER DOWNLOAD EXAMIANS APP
Physics In a railway track, two rails are joined end to end with a gap in between them because Accidents due to expansion in summer can be avoided Steel can be saved Air-gaps are necessary for bearing the weight of running train Accidents due to contraction in winter can be avoided Accidents due to expansion in summer can be avoided Steel can be saved Air-gaps are necessary for bearing the weight of running train Accidents due to contraction in winter can be avoided ANSWER DOWNLOAD EXAMIANS APP
Physics The hair of shaving brush clings together when removed from water due to Viscosity Surface tension Elasticity Friction Viscosity Surface tension Elasticity Friction ANSWER DOWNLOAD EXAMIANS APP
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