Compare the two numbers using <, >, = 5 x 10^2 500

2 x 10^7 7 x 10^3

6 x 10^3 5 x 10^4

5 x 10^5 3 x 10^7

4 x 10^2 4000

6 x 10^3 6000

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.