Physics Which of the following is a device designed to protect electrical devices from voltage spikes? Heat protector Voltage unloader Surge protector Current unloader Heat protector Voltage unloader Surge protector Current unloader ANSWER DOWNLOAD EXAMIANS APP
Physics Why does a cannon recoil after firing ? Conservation of energy 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 ANSWER DOWNLOAD EXAMIANS APP
Physics Which sources produce alternating current (AC)? Batteries Solar power plants All of these Hydro-electric generators Batteries Solar power plants All of these Hydro-electric generators ANSWER DOWNLOAD EXAMIANS APP
Physics A boat will submerge when it displaces water equal to its own: Weight Volume Surface area Density Weight Volume Surface area Density ANSWER DOWNLOAD EXAMIANS APP
Physics Which elements are malleable and good conductors of electricity? Tin and xenon Tin and silver Iodine and xenon Iodine and silver Tin and xenon Tin and silver Iodine and xenon Iodine and silver ANSWER DOWNLOAD EXAMIANS APP
Physics When two similar sources vibrate with slightly different frequencies, a regular rise and fall occurs in the loudness of tone. This phenomenon is known as Doppler effect Beats Echo Resonance Doppler effect Beats Echo Resonance ANSWER DOWNLOAD EXAMIANS APP
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