If the average velocity during the athlete's walk back to the starting line in Guided Example 2.5 is – 1.50 m/s, how much
time does it take for the athlete to walk back to the starting line?

Two polarizers are oriented at 70∘∘ to one another. unpolarized light falls on them. what fraction of the light intensity is transmitted?

Aball has an initial velocity of 3 m/s. if there is no friction, what is the highest it could roll?

Asap and show ! a 14 kg rock starting from rest free falls through a distance of 5.0 m with no air resistance. find the momentum change of the rock caused by its fall and the resulting change in the magnitude of earths velocity. earth mass is 6.0 * 10^24 kg. show your work assuming the rock earth system is closed.