74 4:22 9A25BAX UPN @ 11% TO +:0 C =N 225 =15 ILA/ = EVE IBA/ =15 15 lig = SUC = NC = 1. 7454 3 D = Us * ( 0 7454 ) = 41.21' 0-41.81' CA= 41.51' 36. Show that for any object suspended in equilibrium by two wires, the ratio of the tensions in the wires is equal to the ratio of the secants of the horizontal angles formed by the wires. Note: sec 0=- 1 cos 0 (C: 14)(A: 12) horizontal 6 1 V V W 37. An airplane is heading 040 with an airspeed of 800 km/h. A wind from the west causes it to have the course 0450 Find the resultant groundspeed of the wind. (sketach a diagram toT4 4:22 9325BAA UPN @ 11% TO +:0 Keinitant speed AL = UR speed of Alpine AB = UA now . since late - computes angle to their speed if wihl BL = UW opposite side Name: ID: A LA - 5. 26= 46: 213-129 0 38. A radioactive sample decayed to 33% of its original mass after 8 days. a) Find the half-life of this element, in days. b) Find the rate of decay of the element after 10 days. Express your answer to the nearest tenth of a percent per day. (C: 12) (T: 12) (0 1 00 V +'FF4:24 Qstllgfx 2613 'g 2020 Leading Wave Nexus Inc. cLawrence Academy =? Walwe Name: ID: A v2 26. The range of a projectile can be modelled by the function R = E sian, where v is the initial speed in metres per second, g is the gravitational acceleration, in metres per second squared, and x is the angle to the 5 ground. Determine the function that measures the rate of change of the range with respect to the angle of , thrust. 9 (T: /2)(A: /2) v