Physics Railway tracks are banked on curves so that The train may not fall down inwards No frictional force may be produced between the tracks and the wheels of the train Necessary centrifugal force may be obtained from the horizontal component of the weight of the train Necessary centripetal force may be obtained from the horizontal component of the weight of the train The train may not fall down inwards No frictional force may be produced between the tracks and the wheels of the train Necessary centrifugal force may be obtained from the horizontal component of the weight of the train Necessary centripetal force may be obtained from the horizontal component of the weight of the train ANSWER DOWNLOAD EXAMIANS APP
Physics A body of mass 5 kg accelerates from 12 m/s to 20 m/s in 4 seconds due to the application of a force on it. Calculate the magnitude of this force (in N). 20 80 10 40 20 80 10 40 ANSWER DOWNLOAD EXAMIANS APP
Physics On a cold day when a room temperature is 15oC, the metallic cap of a pen becomes much colder than its plastic body, though both are at the same temperature of 15oC, because plastics have a lower density than metals plastics have a higher thermal conductivity than metals metals have higher thermal capacity than plastics metals are good conductor of heat plastics have a lower density than metals plastics have a higher thermal conductivity than metals metals have higher thermal capacity than plastics metals are good conductor of heat ANSWER DOWNLOAD EXAMIANS APP
Physics Water has maximum density at 273°C 0°C 100°C 4°C 273°C 0°C 100°C 4°C ANSWER DOWNLOAD EXAMIANS APP
Physics Magnetic field lines about a current-carrying wire None of these Extend radially from the wire Both of these Circle the wire in closed loops None of these Extend radially from the wire Both of these Circle the wire in closed loops ANSWER DOWNLOAD EXAMIANS APP
Physics Which resource is both renewable and inexpensive? Coal Gold Sunlight Minerals Coal Gold Sunlight Minerals ANSWER DOWNLOAD EXAMIANS APP
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