Arigid rod is rotating at a constant angular speed about an axis that is perpendicular to one end of the rod. a small ball is fixed to the rod at a distance that is 12 cm from the axis. the centripetal force acting on this ball is 1.7 n. what would be the centripetal force that acts on the ball if the ball were fixed to the rod at a distance of 33 cm from the axis?

Which of the following are appropriate acceleration units?

How many atoms of nitrogen are in the chemical formula ni(w on

Afaulty model rocket moves in the xy-plane (the positive y direction is vertically upward). the rocket's acceleration has components ax(t) = ? t2 and ay(t) = ? ? ? t, where ? = 2.50 m/s4 , ? = 9.00 m/s2 , and ? = 1.40 m/s3 . at t = 0 the rocket is at the origin and has velocity ~v0 = v0x ? i + v0y ? j with v0x = 1.00 m/s and v0y = 7.00 m/s. (a) calculate the velocity and position vectors as functions of time. (b) what is the maximum height reached by the rocket? (c) sketch the path of the rocket. (d) what is the horizontal displacement of the rocket when it returns to y = 0?