如图所示,A,B,C是相隔不远的三座山峰的峰顶,地理测绘员要在A,B,C三点进行测量在C点测得B点的仰角为30°,B与C的海拔高度相差180m;在B点测得A点的仰角为45°.设A,B,C在同一水平面上的射影为
,
,
,且
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/24/727ca6f5-cfb1-41bd-bb39-9e333a5264c5.png?resizew=109)
(1)求A与C两点的海拔高度差;
(2)已知该地大气压强p(Pa)随海拔高度h(m)的变化规律是
(
),
是海平面大气压强,设A,C两处测得的大气压强分别为
,
,估计
的值.
参考数据:
,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac7856b843caf384fca612ce663f21c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4cfbcf4ecbca8f964985f4a2d3700ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2b227b38b45b5fce63a6bdad8adf113.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59c344854f82fe5540ff0e36f4e7d40a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/24/727ca6f5-cfb1-41bd-bb39-9e333a5264c5.png?resizew=109)
(1)求A与C两点的海拔高度差;
(2)已知该地大气压强p(Pa)随海拔高度h(m)的变化规律是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca8cb0f8ef7498dc511ab8c73ce4f491.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/035ccabb772417a69e143b2490e75c55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdc1ff55b0d8b8ab417c8da783f2d798.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff80062542b5acdcda2e310875865ecc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3270a1c8fa664705d500f3476da8631b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be2ad9c958c6c76e3724ed54614f7f8e.png)
参考数据:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c6d8da4e586ce4c9298e2c2ea45132a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/801d8b45accfddc5eb3b14f1eba85198.png)
更新时间:2022-10-10 19:01:44
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【推荐2】在
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【推荐1】在
点的正上方有气球
,从
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点南偏东
方向上的
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、
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.问:气球
离地面约多少米(精确到
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
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【推荐2】某校开展数学专题实践活动,要求就学校新建的体育馆进行研究,为了提高研究效率,小王和小李打算分工调查测量并绘图,完成两个任务的研究.
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和体育馆
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的仰角是
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.
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.当观众所站的位置
到屏幕上下两端
,
所张的角
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请帮助小李完成任务二:求步道
上观看屏幕效果最佳地点
的位置.
(1)小王获得了以下信息:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
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请帮助小李完成任务二:求步道
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
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