I just want an answer please

The roller coaster from problem #1 then tops a second hill at 15.0 m/s, how high is the second hill? 91.5 m 79.2 m 80.0 m 68.5 m

The respiratory system removes oxygen and water from the body. select the best answer from the choices provided t f

One form of energy can be another type of energy. a. created to form b. transformed into c. destroyed and then created to form