Created by StemPy LabA car drives over a hump-backed bridge whose top is part of a vertical circle of radius . Taking , the greatest speed at which the car can pass over the top without its wheels leaving the road, in m/s, is ____.
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← In the logic circuit shown in the figure, input A goes to a NOT gate. The output of the NOT gate and input B go into an AND gate. The output of the AND gate and input A go into an OR gate, whose output is Y. For all inputs, the circuit gives the same output as a singleA lead bullet travelling at 300 m/s hits a thick steel plate and comes to a stop inside a dent in it. Half of the bullet's kinetic energy turns into heat that stays in the bullet; the rest goes into the plate and into sound. The specific heat of lead is 125 J kg⁻¹ K⁻¹. The rise in the temperature of the bullet, in kelvin, is ____. →
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