16.

The drawing shows a person looking at a building on top of which an antenna is mounted. The horizontal distance between the person's eyes and the building is 98.6 m. In part a the person is looking at the base of the antenna, and his line of sight makes an angle of 36.6 with the horizontal. In part b the person is looking at the top of the antenna, and his line of sight makes an angle of 40.10 with the horizontal. How tall is the antenna? 36.6 40.1 98.6 m B 98.6 m H =What is the value of each of the angles of a triangle whose sides are 153, 197, and 96 cm in length? (Hint: Consider using the law of cosines given in Appendix E.) The angle opposite the side of length 96 is Number i Units The angle opposite the side of length 153 is Number i Units The angle opposite the side of length 197 is Number i UnitsTwo workers are trying to move a heavy crate. One pushes on the crate with a force 7, which has a magnitude of 264 newtons (N) and is directed due west. The other pushes with a force , which has a magnitude of 218 N and is directed due north. What are (a) the magnitude and (b) direction of the resultant force A + 7 applied to the crate? Suppose that the second worker applies a force - instead of B. What then are (c) the magnitude and (d) direction of the resultant force 7 - p applied to the crate? In both cases express the direction as a positive angle relative to due west. (a) Number i Units (b) Number i Units north of west (c) Number i Units (d) Number Units v south of west