Please do these questions

1. A small airplane has an air speed of 240km/h. The pilot wishes to fly to a destination that is 480 km due west from the plane's present location. There is a 40km/h wind from the south. How long will it take the plane to reach its destination?2. A mess of 10kg is suspended from a ceiling by two ropes that make angles of 40 and 45 with the ceiling. Determine the tension in the two ropes. 4. A 21 N force is applied at the end of a 22 cm wrench such that the force makes an angle of 30 with the wrench. What is the magnitude of the torque about the point of rotation?5. Use dot and cross product to prove that ('1' = (2, 5, 3),3 = (3,4, 1) and E = (21, 5, 14) all lie 0n the same plane. 6. Determine the area of the parallelogram formed by the vectors a = (1, 3, 4) and b = (-2, 4, 3)