Physics The force of friction between two surfaces will increase if: Air gap is created between the two surfaces A layer of lubricant is kept between the two surfaces Irregularities on both the surfaces are removed The two surfaces are pressed harder Air gap is created between the two surfaces A layer of lubricant is kept between the two surfaces Irregularities on both the surfaces are removed The two surfaces are pressed harder ANSWER DOWNLOAD EXAMIANS APP
Physics The energy that generates wind comes from what source? Ocean currents None of these Anemometers Solar radiation Ocean currents None of these Anemometers Solar radiation ANSWER DOWNLOAD EXAMIANS APP
Physics The strength of an electromagnet can be increased by Increasing the length of the coiled wire All of these Increasing the number of turns Increasing current supply Increasing the length of the coiled wire All of these Increasing the number of turns Increasing current supply ANSWER DOWNLOAD EXAMIANS APP
Physics Which is a common first indicator of an approaching thunderstorm? Too hot Lightning Heavy wind A buildup of dark clouds Too hot Lightning Heavy wind A buildup of dark clouds ANSWER DOWNLOAD EXAMIANS APP
Physics Golden view of sea shell is due to Diffraction Polarization Dispersion Reflection Diffraction Polarization Dispersion Reflection ANSWER DOWNLOAD EXAMIANS APP
Physics Sound travels with a different speed in media. In what order does the velocity of sound increase in these media? Iron, air and water Air, water and iron Iron, water and air Water, iron and air Iron, air and water Air, water and iron Iron, water and air Water, iron and air ANSWER DOWNLOAD EXAMIANS APP
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