Ashark swims at a rate of 18 feet per second while chasing his prey and then slows down to a rate of 7 feet per second. the shark chases his prey for t seconds and then swims at the slower speed for s seconds, and covers a total distance of 1200 feet. if all traveling is done in the same direction, which equation best describes this information?

The diagram shows four locations in the electric field of a positive point charge m. at which location is the electric potential the greatest.

During a medieval siege of a castle, the attacking army uses a trebuchet to hurl heavy stones at the castle walls. if the trebuchet launches the stones with a velocity of at an angle of 50.0°, (a) how long does it take the stone to hit the ground? (b) what is the maximum distance that the trebuchet can be from the castle wall to be in range? (c) how high will the stones go? show all your work.

The gun from the crime scene shows tool marks where the serial numbers are ground off. there are also tool marks on the bullets left behind. what information can the tool marks on the bullets and gun provide about the crime? what type of evidence does this information provide, individual or class?