一架质量为m的直升飞机在空中悬停不动,问其发动机输出功率P为多少?其他参数可自行补充,如力F、时间t、转速n、密度ρ、重力加速度g等.功率为0,飞机肯定要掉下来。取消螺旋桨,用向下喷
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![一架质量为m的直升飞机在空中悬停不动,问其发动机输出功率P为多少?其他参数可自行补充,如力F、时间t、转速n、密度ρ、重力加速度g等.功率为0,飞机肯定要掉下来。取消螺旋桨,用向下喷](/uploads/image/z/6901620-60-0.jpg?t=%E4%B8%80%E6%9E%B6%E8%B4%A8%E9%87%8F%E4%B8%BAm%E7%9A%84%E7%9B%B4%E5%8D%87%E9%A3%9E%E6%9C%BA%E5%9C%A8%E7%A9%BA%E4%B8%AD%E6%82%AC%E5%81%9C%E4%B8%8D%E5%8A%A8%2C%E9%97%AE%E5%85%B6%E5%8F%91%E5%8A%A8%E6%9C%BA%E8%BE%93%E5%87%BA%E5%8A%9F%E7%8E%87P%E4%B8%BA%E5%A4%9A%E5%B0%91%3F%E5%85%B6%E4%BB%96%E5%8F%82%E6%95%B0%E5%8F%AF%E8%87%AA%E8%A1%8C%E8%A1%A5%E5%85%85%2C%E5%A6%82%E5%8A%9BF%E3%80%81%E6%97%B6%E9%97%B4t%E3%80%81%E8%BD%AC%E9%80%9Fn%E3%80%81%E5%AF%86%E5%BA%A6%CF%81%E3%80%81%E9%87%8D%E5%8A%9B%E5%8A%A0%E9%80%9F%E5%BA%A6g%E7%AD%89.%E5%8A%9F%E7%8E%87%E4%B8%BA0%EF%BC%8C%E9%A3%9E%E6%9C%BA%E8%82%AF%E5%AE%9A%E8%A6%81%E6%8E%89%E4%B8%8B%E6%9D%A5%E3%80%82%E5%8F%96%E6%B6%88%E8%9E%BA%E6%97%8B%E6%A1%A8%EF%BC%8C%E7%94%A8%E5%90%91%E4%B8%8B%E5%96%B7)
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