The above stress is approximated by a sinusoidal function (i. e. sine wave) with a mean 3,526 kPa and amplitude 260 kPa at a frequency of 6 Hz. At a second flight condition, the stress had an additional sinusoidal component (i. e., in addition to the first sinusoidal function above) that has 3 times the frequency of the first component and half of the magnitudes of the first component. The format for the Fourier series for the stress signal for this flight condition is given below: y(t)2 = { z1 + z2 * sin (d2*π t) + z3 * cos (d3*π tπt) } kPa. Where the second term corresponds to a lower frequency compared to the third term. Provide the value of z1 (using 2 decimal places).

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Is a  vector quantity  that refers to "the rate at which an object changes its position." imagine a person moving rapidly - one step forward and one step back - always returning to the original starting position. while this might result in a frenzy of activity, it would result in a zero velocity. because the person always returns to the original position, the motion would never result in a change in position. since velocity is defined as the rate at which the position changes, this motion results in zero velocity. if a person in motion wishes to maximize their velocity, then that person must make every effort to maximize the amount that they are displaced from their original position. every step must go into moving that person further from where he or she started. for certain, the person should never change directions and begin to return to the starting position.