The system makes 20 complete vibrations in 4.0 s, so its frequency is
While the angular frequency is
For a simple harmonic motion, the angular frequency is also equal to
where k is the spring constant, while m=25 g=0.025 kg is the mass attached to the spring. Using the value of the angular frequency we calculated before, we can find the value of k:
If the friction and air resistance was 75N and Elaine was traveling with a force of 75N the forces would cancel out. Elaine's bike would not be moving and all the forces would be balanced
Its level of output in the short run should not change
Explanation:
For a monopoly, maximization of profit is only possible if marginal cost is equal to marginal revenue. The new equipment will only change the fixed cost and not the marginal cost, thus there will be no change in the level of output.