But how can the only number that is less than 4 or equal to 4 be 8
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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.

What is hidden during a lunar eclipse? isn't the moon hidden?

Ais useful when you need a simple machine to you separate two things. a. lever b. screw c. pulley d. wedge