a body is thrown vertically upward with a velocity of 100m/s. what is the time it's takes to reach the ground​

What color would an object that reflects green and blue light appear to be in white light? a. blue b. cyan c. magenta d. black

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.

Scientific models are based on current knowledge, which can limit their effectiveness when new discoveries are made.