A woman tosses a ball straight upward. It takes 2.1 seconds for it to reach its maximum height. What was its speed at that height?

Why should seat belts not be mandatory quick plz

Question 1 (5 pts): what is the maximum distance for which you can you resolve the two individual headlights of an on-coming truck as two separate lights rather than one if the headlights are separated by 2.00 m and your eye has a diameter of 1.00 centimeter? assume a wavelength of 500 nm.

The amount of potential energy possessed by an elevated object is equal to what?