A laser beam is reflected by a plane mirror. It is observed that the angle between the incident and reflected beams is 24 °. You may want to review (Pages 914 - 916) Part A If the mirror is now rotated so that the angle of incidence increases by 4.0", what is the new angle between the incident and refected beams Express your answer as a whole number.

1. Express the force as representation. a Cartesian vector or Rectangular F= 50 lb 45°

The components of vector  are  = -3.5 and  = -4.7, and the components of vector  are  = -6 and  = +8.1. What is the angle (less than 180 degrees) between vectors  and

3) Vector A has magnitude 45 and direction 27°. Vector B has magnitude 30 and direction 128°. Find the cross product Ả× B.