Refer to Conceptual Example 11 as an aid in solving this problem. An intergalactic cruiser has two types of guns: a photon cannon that fires a beam of laser light and an ion gun that shoots ions at a velocity of 0.960c relative to the cruiser. The cruiser closes in on an alien spacecraft at a velocity of 0.770c relative to this spacecraft. The captain fires both types of guns. At what speed do the aliens see (a) the laser light and (b) the ions approach them? At what velocity do the aliens see (c) the laser light and (d) the ions move away from the cruiser? (a) Number i (b) Number i (c) Number i (d) Number i Units Units Units Units Laser beam Ion beam

Refer to Conceptual Example 11 as an aid in solving this problem. An intergalactic cruiser has two types of guns: a photon cannon that fires a beam of laser light and an ion gun that shoots ions at a velocity of 0.960c relative to the cruiser. The cruiser closes in on an alien spacecraft at a velocity of 0.770c relative to this spacecraft. The captain fires both types of guns. At what speed do the aliens see (a) the laser light and (b) the ions approach them? At what velocity do the aliens see (c) the laser light and (d) the ions move away from the cruiser? (a) Number i (b) Number i (c) Number i (d) Number i Units Units Units Units Laser beam Ion beam