Determine minimum coefficient of static friction b/w tires
A curve with a 140 m radius on a level road is banked at the correct angle for a speed of 20 m/s. If an automobile rounds this curve at 30 m/s, what is the minimum coefficient of static friction between tires and road needed to prevent skidding?
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The heat energy contained in coal is approximately 25 MJ/kg. How long would the Sun shine, if it really were a piece of burning coal?
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The incoming ray makes an angle of 26.1degree with the normal, and the refracted ray makes an angle of 20.2degree with the normal. Find the index of refraction of the transparent material. (assume that the index of refraction of air for light of w
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