Physics Railway tracks are banked on curves the train may not fly off in the opposite direction necessary centripetal force may be obtained from the horizontal component of the weight of the train to avoid frictional force between the tracks and wheels necessary centrifugal force may be obtained from the horizontal component weight of the train the train may not fly off in the opposite direction necessary centripetal force may be obtained from the horizontal component of the weight of the train to avoid frictional force between the tracks and wheels necessary centrifugal force may be obtained from the horizontal component weight of the train ANSWER DOWNLOAD EXAMIANS APP
Physics Why does a cannon recoil after firing ? Newton's third law of motion Newton's first law of motion Backward thrust of gases produced Conservation of energy Newton's third law of motion Newton's first law of motion Backward thrust of gases produced Conservation of energy ANSWER DOWNLOAD EXAMIANS APP
Physics The device which converts sound energy into electrical energy is called Microphone Transmitter Speaker Amplifier Microphone Transmitter Speaker Amplifier ANSWER DOWNLOAD EXAMIANS APP
Physics One billionth of a second is called Microsecond Nanosecond Picoseconds Millisecond Microsecond Nanosecond Picoseconds Millisecond ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following are methods of heat transfer? Evaporation Revolution Thermal Expansion Convection Evaporation Revolution Thermal Expansion Convection ANSWER DOWNLOAD EXAMIANS APP
Physics Who is the first person to define speed Ptolemy Kepler Newton Galileo Ptolemy Kepler Newton Galileo ANSWER DOWNLOAD EXAMIANS APP
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