Below graphs are velocity vs time components for an object in two dimension. The object starts motion at the origin. a. In which direction is the object moving at t = 2 s? Give your answer as an angle from the x-axis. b. How far from the origin is the object at t = 5 s?

Which is not true about oxygen-17 and oxygen-18?

Astone is dropped from a cliff and falls 9.44 meters. what is the speed of the stone when it reaches the ground? a. 13.6 m/sec b. 1.39 m/sec c. 185 m/sec d. 9.80 m/sec

Arocket starts from rest and moves upward from the surface of the earth. for the first 10.0 s of its motion, the vertical acceleration of the rocket is given by ay = 12.80 m/s32t, where the +y-direction is upward. (a) what is the height of the rocket above the surface of the earth at t = 10.0 s? b) what is the speed of the rocket when it is 325 m above the surface of the earth?