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Q. Constable Bob inspected skid marks near a traffic accident to determine the acceleration of initial velocity of the lawn mower involved in the accident. Bob measured the lawn mower skid marks to be 32 m long. Witnesses said the lawn mower was skidding for about 6.0 s and was moving at about 4.0 m/s when it collided with the mo-ped

Q. An electron confined in a one-dimensional box is observed, at different times, to have energies of 12 {rm eV}, 27 {rm eV}, and 48 {rm eV}.What is the minimum length of the box?

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