What is the first velocity of the car with four washers at the 0.25 meter mark? m/s Calculate the first and second velocities of the car with four washers attached to the pulley, using the formulas V1 = 0.25 m/ty, and v2 = 0.25 m/(t2-t1) where to and ty 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 What is the second velocity of the car with four washers at the 0.50 meter mark? m/s
The sound level near a noisy air conditioner is 70 db. if two such units operate side by side, the sound level near the, would bea. 70dbb. 73 dbc. 105 dbd 140 db