Much of the general structure and physical properties of the interior of the earth are inferred from: a) deep oil and gas bore holes b) geologic investigations c) analysis of seismic waves d) study of volcanoes

Calculate the first and second velocities of the car with four washers attached to the pulley, using the formulas v1 = 0.25 m / t1 , and v2 = 0.25 m / (t2 – t1) where t1 and t2 are the average times the car took to reach the 0.25 and the 0.50 meter marks. record these velocities, to two decimal places, in table e.