Astudent stumbles backward off a dock and lands in a small boat. the student isn’t hurt, but the boat drifts away from the dock with a velocity of 0.85 m/s to the west. if the boat and student each have a mass of 68 kg, what is the student’s initial horizontal velocity

The experiment was repeated many years later but the gases were mixed in a different type of container. a white solid was obtained which was xenon fluoride. predict whether you think 1) krypton and 2) radon will react with fluorine. explain reasons for your predictions

Two students, each riding bicycles, start from the same apartment building and ride to the same building on campus, but each takes a different route. the first student rides 1100 m due east and then turns due north and travels another 1430 m before arriving at the destination. the second student heads due north for 1930 m and then turns and heads directly toward the destination.at the turning point, how far is the second student from the destination?

The electric field inside a cell membrane is 8.0mn/c. what's the force on a singly charged ion in this field?