Physics The function of ball bearings in a wheel is : To increase friction To convert kinetic friction into rolling friction Just for convenience To convert static friction into kinetic friction To increase friction To convert kinetic friction into rolling friction Just for convenience To convert static friction into kinetic friction ANSWER DOWNLOAD EXAMIANS APP
Physics The temperature which has the same reading on both Fahrenheit and Celsius scales is –40° 40° 32° 0° –40° 40° 32° 0° ANSWER DOWNLOAD EXAMIANS APP
Physics For a body moving with uniform acceleration its final velocity equals ________ Average velocity - initial velocity 2 x average velocity - initial velocity Average velocity + initial velocity 2 x average velocity + initial velocity Average velocity - initial velocity 2 x average velocity - initial velocity Average velocity + initial velocity 2 x average velocity + initial velocity ANSWER DOWNLOAD EXAMIANS APP
Physics A voltaic cell converts chemical energy to Light energy Heat energy Mechanical energy Electrical energy Light energy Heat energy Mechanical energy Electrical energy ANSWER DOWNLOAD EXAMIANS APP
Physics X–rays are Positively charged particles Neutral particles Negatively charged particles None of these Positively charged particles Neutral particles Negatively charged particles None of these ANSWER DOWNLOAD EXAMIANS APP
Physics A rubber ball is dropped from a height of 2 metres. To what height will it rise if there is no loss of energy/velocity after rebounding ? 4 metres 3 metres 2 metres 1 metre 4 metres 3 metres 2 metres 1 metre ANSWER DOWNLOAD EXAMIANS APP
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