Answer:
A
Explanation:
60 + 30 = 90
90 divided by 3 = 30
30 divided by 60 = 0.5
so your answer is 0.5 m/s
Therefore, if the block moves from its position of maximum spring stretch to maximum spring compression in 0.25 s, the time required for a full cycle is twice as much; T = 0.5 s.
The index of refraction of light varies from color to color. TRUE.
