Created by StemPy LabThe velocity of a particle changes with time as , where , and are constants. The dimensions of , and are
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← Pure silicon at room temperature has 1.5 × 10¹⁶ free electrons per cubic metre, and the same number of holes. It is doped with 4.5 × 10²² donor (pentavalent) atoms per cubic metre, each of which gives one free electron. If the number of holes per cubic metre in the doped silicon is N × 10⁹, the value of N is ____.A particle starts from rest at x = 0 and moves along the x-axis so that its velocity at position x is v = 4√x, with v in m/s and x in metres. Its acceleration, and the distance it covers in the first 2 s, are →
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