What were the results when male and female experimental subject gazed steadily into each other eyes for two minutes

What happens to the light rays when they hit the specimen?

Apulley with mass mp and a radius rp is attached to the ceiling, in a gravity field of 9.81 m/s2 and rotates with no friction about its pivot.

Will mark as brainliest how does a catapult increase the trajectory of an object? ps. answer as if u were a 5th grader