A 2.4kg block sliding on a rough horizontal surface is attached to one end of a horizontal spring ( k=188/m) which has its other end fixed. The block passes through the equilibrium position with a speed of 2.76m/s and first comes to rest at a displacement of 0.23m from equilibrium. What is the coefficient of kinetic friction between the block and the horizontal surface?

colorectal cancer may also develop from areas of abnormal cells in the lining of the colon or rectum. this area of abnormal cells is called dysplasia and is more commonly seen in people with certain inflammatory diseases of the bowel such as crohn's disease or ulcerative colitis.

the earths atmosphere is made up of nitrogen and oxygen. solids can turn into gasses through a process called sublimation. sublimation is the transition of a substance directly from the solid to the gas phase, without passing through the intermediate liquid phase.

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