Physics, 09.04.2021 02:30 Zachary4759
Question 8: Unspooling Thread (100 points) A 110 g spool of thread with a 4.2 cm radius is held up by a peg through its center and allowed to freely rotate. Assume the thread is ideal (i. e., it does not stretch or slip, and its mass is negligibly small). A 160 g needle is tied to the loose end of the thread. The needle is dropped, and it accelerates to the floor as the thread unwinds. Find the tension in the thread and the magnitude of the acceleration of the needle as it falls.
Answers: 3
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Simple machines can a. increase force only b. decrease force only c. increase or decrease force
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The mini-refrigerator fire was most likely caused by what type of wiring?
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Ahanging spring stretches by 35.0 cm when an object of mass 450 g is hung on it at rest. in this situation, we define its position as x = 0. the object is pulled down an additional 18.0 cm and released from rest to oscillate without friction. what is its position x at a moment 84.4 s later? express your answer in cm.
Answers: 1
Question 8: Unspooling Thread (100 points) A 110 g spool of thread with a 4.2 cm radius is held up b...
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