Physics Ball bearings are used in cycles, scooters etc to Reduce the friction between the wheel and the axle Increase the friction between the wheel and the axle Reduce the friction between ground and the whee None of these Reduce the friction between the wheel and the axle Increase the friction between the wheel and the axle Reduce the friction between ground and the whee None of these ANSWER DOWNLOAD EXAMIANS APP
Physics When hot liquid is poured into a thick glass tumbler, it cracks because glass : Has high temperature coefficient of expansion Has low temperature coefficient of expansion Is a bad conductor of heat so only inner surface expands Has a very low specific heat Has high temperature coefficient of expansion Has low temperature coefficient of expansion Is a bad conductor of heat so only inner surface expands Has a very low specific heat ANSWER DOWNLOAD EXAMIANS APP
Physics At what temperature (in Fahrenheit) pure water freezes? 37 32 48 37 32 48 ANSWER DOWNLOAD EXAMIANS APP
Physics These waves cannot be transmitted through vacuum. Light Sound Heat Electromagnetic Light Sound Heat Electromagnetic ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following celestial bodies contains abundant quantities of helium-3, a potential source of energy ? Venus Saturn Earth Moon Venus Saturn Earth Moon ANSWER DOWNLOAD EXAMIANS APP
Physics Which measurement describes the pressure of a gas? 315 K 251 g/cub.cm None of these 450 mm Hg 315 K 251 g/cub.cm None of these 450 mm Hg ANSWER DOWNLOAD EXAMIANS APP