Please solve and explained these question in details. From q1-4, please use the way combined vectors to solve them.

1. Forces of 45 N and 35 N act at a point at an angle of 120 degrees to each other. Find the magnitude and direction of the resultant. 2. A45 kg chandelier is suspended from 2 ropes of length 12 m and 8 m which are attached to two points on the ceiling 14 m apart. Find the tensions in the wires. 3. The wind is blowing from 880E at a wind speed of 85 kmih. A plane's actual ground speed is 480 kmlh at a track of 816W. Determine the airspeed and heading the pilot should take. 4. A ship is travelling at 22 knots in the direction N15W. A submarine 12 nautical miles due north of the ship is travelling at 13 knots at 835W. Find the velocity of the ship relative to the submarine? Does the ship pass in front of or behind the submarine? 5. Find the resultant of the following forces: 165 N at 855E 130 N at E25\" N 110 N at N55\" 95 N due West 6. If OA, OB, and DC are three edges ofa parallelepiped where O is (000). A is (2,4,-3), B is (4,6,2), and C is (502), find the coordinates of the other vertices of the parallelepiped and find the volume ofthe parallelepiped