Find the magnitude of the sum of these two vectors: 3.14,30.0,60.0, find the magitude and direction.
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Spend time observing or thinking about events that involve matter and energy. which events can you explain? which events can’t you explain?

Yvette hangs a 2.4kg bird feeder in the middle of a rope tied between two trees. the feeder creates a tension of 480 n in each side of the the rope.

Aturntable a is built into a stage for use in a theatrical production. it is observed during a rehearsal that a trunk b starts to slide on the turntable 10 s after the turntable begins to rotate. knowing that the trunk undergoes a constant tangential acceleration of 0.31 m/s2, determine the coefficient of static friction between the trunk and the turntable.