Physics Friction is caused by the ________ on the two surfaces in contact. Densities Gaps Smoothness Irregularities Densities Gaps Smoothness Irregularities ANSWER DOWNLOAD EXAMIANS APP
Physics Infrasonic sound has a frequency lower than 5 Hz 20 Hz 15 Hz 32 Hz 5 Hz 20 Hz 15 Hz 32 Hz ANSWER DOWNLOAD EXAMIANS APP
Physics Frictional force acts in The opposite direction of the motion Upward direction The same direction as the motion All the directions The opposite direction of the motion Upward direction The same direction as the motion All the directions ANSWER DOWNLOAD EXAMIANS APP
Physics Bats can sense obstacles because they produce Ultrasonic sound waves Infrasonic sound waves Micro sound waves Supersonic sound waves Ultrasonic sound waves Infrasonic sound waves Micro sound waves Supersonic sound waves ANSWER DOWNLOAD EXAMIANS APP
Physics If a carrier wave of 1000 kHz is used to carry the signal, the length of transmitting antenna will be equal to ________. 0.3 m 300 m 30 m 3 m 0.3 m 300 m 30 m 3 m ANSWER DOWNLOAD EXAMIANS APP
Physics Nuclear reactors used to produce electricity are based on Nuclear fission Superconductivity Cold fusion Nuclear fusion Nuclear fission Superconductivity Cold fusion Nuclear fusion ANSWER DOWNLOAD EXAMIANS APP
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