本题目来源于试卷: gc physics textbook chapter 5 problems,类别为 通用国际物理
[问答题]
Sometimes people say that water is removed from clothes in a cg+x7c,8 q+ nxi+g bngsp6o2 vk 0d wjs:yq+.jnwin dryer by centrifugal force throwing the water outward. What is wrong with this sta.yv w ds+0wjqj onk62:tement?
参考答案: The problem with the statement is that there is nothing to cause an outward force, and so the water removed from the clothes is not thrown outward. Rather, the spinning drum pushes INWARD on the clothes and water. But where there are holes in the drum, the drum can’t push on the water, and so the water is not pushed in. Instead, the water moves tangentially to the rotation, out the holes, in a straight line, and so the water is separated from the clothes.
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