Physics A ball is thrown vertically upward from the ground. It crosses a point at the height of 25 m twice at an interval of 4 seconds. The ball was thrown with the velocity of 30 m/s 18 m/s 25 m/s 36 m/s 30 m/s 18 m/s 25 m/s 36 m/s ANSWER DOWNLOAD EXAMIANS APP
Physics What is another name for energy of motion? Motional energy Kinetic energy Potential energy Rotational energy Motional energy Kinetic energy Potential energy Rotational energy ANSWER DOWNLOAD EXAMIANS APP
Physics Infrasonic sound has a frequency lower than 20 Hz 32 Hz 15 Hz 5 Hz 20 Hz 32 Hz 15 Hz 5 Hz ANSWER DOWNLOAD EXAMIANS APP
Physics The reason for a swimming pool to appear less deep than the actual depth is Interference Light scattering Reflection Refraction Interference Light scattering Reflection Refraction ANSWER DOWNLOAD EXAMIANS APP
Physics Should cars have bumpers that collapse under impact? Yes, since the offending car should get damaged and pay for the mistake No, since the colliding car would then ram into the occupants and kill them Yes, since they help to absorb the impact of a collision and keep the occupants safe No, since it would be very expensive to get the car repaired Yes, since the offending car should get damaged and pay for the mistake No, since the colliding car would then ram into the occupants and kill them Yes, since they help to absorb the impact of a collision and keep the occupants safe No, since it would be very expensive to get the car repaired ANSWER DOWNLOAD EXAMIANS APP
Physics Railway tracks are banked on curves so that Necessary centripetal force may be obtained from the horizontal component of the weight of the train No frictional force may be produced between the tracks and the wheels of the train The train may not fall down inwards 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 No frictional force may be produced between the tracks and the wheels of the train The train may not fall down inwards Necessary centrifugal force may be obtained from the horizontal component of the weight of the train ANSWER DOWNLOAD EXAMIANS APP
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