When you push a piece of chalk across a chalkboard, it sometimes screeches because it rapidly alternates
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When you push a piece of chalk across a chalkboard, it sometimes screeches because it rapidly alternates between slipping and sticking to the board. Describe this process in more detail, in particular explaining how it is related to the fact that kinetic friction is less than static friction. (The same slip-grab process occurs when tires screech on pavement.)
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The screeching or squeaking sound that occurs when you push a piece of chalk across a chalkboard is related to the transition between static friction ...View the full answer
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