Physics The function of ball bearings in a wheel is : Just for convenience To increase friction To convert static friction into kinetic friction To convert kinetic friction into rolling friction Just for convenience To increase friction To convert static friction into kinetic friction To convert kinetic friction into rolling friction ANSWER DOWNLOAD EXAMIANS APP
Physics A body is initially moving with a velocity of 5 m/s. It undergoes an acceleration of 2 m/s2 for 4 seconds. Find the displacement (in m) of this body in these 4 seconds. 36 72 4 8 36 72 4 8 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 Beats Echo Resonance Doppler effect Beats Echo Resonance Doppler effect ANSWER DOWNLOAD EXAMIANS APP
Physics When the Sun is near the horizon during the morning or evening, it appears reddish. The phenomenon that is responsible for this observation is Dispersion of light Scattering of light Reflection of light Refraction of light Dispersion of light Scattering of light Reflection of light Refraction of light ANSWER DOWNLOAD EXAMIANS APP
Physics The fact that the planets move around the Sun, not in circles but in ellipses, was first demonstrated by Galileo Johannes Kepler Copernicus Martin Luther Galileo Johannes Kepler Copernicus Martin Luther ANSWER DOWNLOAD EXAMIANS APP
Physics The velocity of the sound is highest in Metal Water Vacuum Air Metal Water Vacuum Air ANSWER DOWNLOAD EXAMIANS APP
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