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?

Acar accelerates from 5.0 m/s to to 11 m/s at a rate of 3.0 m/s^2. how far does it travel while accelerating? 20m 117m 43m 16m

How does the amount of energy required to hold each proton and neutron in the nucleus compare to the energy released when they are removed?

The ratio of lift to drag l/d for a wing or airfoil is an important aerodynamic parameter, indeed, it is a direct measure of the aerodynamic efficiency of the wing. if a wing is pitched through a range of angle of attack, l/d first increases, then goes through a maximum, and then decreases. consider an infinite wing with an naca 2412 airfoil. estimate the maximum value of l/d. assume that the reynolds number is 9x10^6.