figure 2 shows a 20 kg block and a 15 kg block suspended by a light rope through a
pulley that has a radius of 10 cm and a mass of 5.0 kg. the pulley rotates without
friction. the 20 kg block moves downward from rest. determine the
a) angular acceleration of the pulley

The duration of a photographic flash is related to an rc time constantly

Answer: it will take   4.36 seconds to reach her average velocity 10.69 miles/hour.explanation:   we have equation of motion ,where s is the displacement, a is the acceleration, u is the initial velocity and t is the time taken.average velocity = displacement/ time taken.average velocity = 10.69 miles/hr = 10.69*1.6*1000/(60*60) = 4.75 m/s4.75 = s/ts = 4. 1we also have acceleration = 2.18 m/s², initial velocity = 0 m/sso it will take   4.36 seconds to reach her average velocity 10.69 miles/hour.

Ibelieve the answer is arteries