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最近在几种高中物理教辅用书上频频出现“已知水柱几何尺寸求喷水机功率”这样一个问题,引起了许多学生的困惑,同时不少教师也对该问题产生了争议.今将常见的错解和正确解分析如下,供同行参考.1问题某公园有一电动喷水池,喷出的水柱竖直向上.在稳定喷水过程中,水柱高h=5m,空中
Recently, in several high school physics textbooks, the problem of “known water column geometry for water jet power” has frequently arisen. This has caused confusion for many students, and many teachers have also disputed this issue. Today will be common. The analysis of the wrong solution and correct solution is as follows for your reference. 1 Problem There is an electric fountain in a park, and the water column sprays upright. In the process of stable water spray, the height of water column is h=5m, in the air