Are the results of a thoroughly tested hypothesis? predictions theories laws observations

Amachine, modeled as a simple spring-mass system, oscillates in simple harmonic motion. its acceleration is measured to have an amplitude of 5,000 mm/s with a fre- quency of 10 hz. compute the maximum displacement the machine undergoes during this oscillation.

According to social exchange theory, altruistic behaviors benefit the individual who performs them.

Aman throws a football straight into the air. as it rises, it slows down. which type of energy is the football gaining?