a particle is acted on by a conservative force, f = (−ax bx5)î n, where a and b are constants, and x is in meters. (for your answers, use the following as necessary: a, b, and x.)

From center station, a train departs every 30 minutes on the fast line and a train departs every 50 minutes on the state line. if two trains depart from center station at 8: 00 a. m., one on each of the two lines, what is the next time that two trains, one on each line, will depart at the same time?

Around faucet handle is part of a(n) a. lever b. screw c. inclined plane d. wheel and axle

Assume similar data for the motion of the blood in your aorta. estimate how many beats of the heart it will take the blood to get from your heart to your brain. (assume that the distance from your heart to your brain is 30 cm)