When W₁=200g and w₂= 450g, calculate the extension of the spring per unit load. g =10m/s²​

Aball is thrown upward in the air, and its height above the ground after t seconds is h ( t ) = 57 t − 16 t 2 feet. find the time t when the ball will be traveling upward at 14.25 feet per second.

Which governments provide garbage collection services to homes and businesses

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