Which of the following elements is commonly found in the earth's crust, living matter, oceans, and atmosphere? a. carbon b. argon c. bromine d. zinc

If state law mandates that elevators cannot accelerate more than 2.40 m/s2 or travel faster than 14.8 m/s , what is the minimum time in which an elevator can travel the 373 m from the ground floor to the observatory floor? ?