Acar with a mass of 975 �� and a speed of 18.0 �/� approaches an intersection from west. a 1260 �� minivan traveling at 25.8 �/� due north is heading for the same intersection. the car and minivan collide and stick together. (a) state two equations that will satisfy the conversation of linear momentum. (b) find the speed and direction of the wrecked vehicles just after the collision, assuming external forces can be ignored.

Wo small variable-thrust jets are actuated to keep the spacecraft angular velocity about the z-axis constant at ? 0 = 1.16 rad/s as the two telescoping booms are extended from r1 = 1.18 m to r2 = 4.69 m at a constant rate over a period of 124 seconds. the small 19-kg experiment modules at the ends of the booms may be treated as particles, and the mass of the rigid booms is negligible. determine the necessary thrust t for each jet as a function of time where t = 0 is the time when the telescoping action is begun. after you have the general expression for t, answer the questions. show work.

The field lines around one end of a bar magnet are shown below based on the diagram, what can you conclude about the pole of the magnet? a.is a south pole because the field hnes spread out from this end b.a north pole because the field lines spread out from this end c.a nouth pole because the field lines enter the magnet at this end d.is a north pole because the field lines enter the magnet at this end

How to know which equation of motion to use where?explain