ggps全球定位系统利用电磁波吗》

With the continuous development of environmental protection, to 3S (RS remote sensing technology, GPS global positioning system, GIS geographic information system) technology, some of the information represented by the new technology in the field of environmental monitoring and scientific research more widely, which a collection of space remote sensing technology, electronics, optics, computer, biology and other sciences to study the latest achievements of modern high-tech fields an important part. The emergence of remote sensing technology has opened a human observing the Earth from outer space, a prelude to human knowledge of land, development of resources, environmental monitoring, research and analysis of global climate change disasters to provide a new way. Based on the analysis of the practical application of these techniques described, which focused on remote sensing research in the field of environmental monitoring applications.

（1）卫星在轨道上运行：
[GMm
r2=m
4π2r
T2
卫星距地面高度
h=r-R
对地面上质量为m₀的物体有
m₀g=G
Mm0
R2
联立解得
h=
3
gR2T2
4π2/]-R．
（2）设转盘转动角速度为ω时，夹角为θ，
座椅到中心轴的距离：R=r+Lsinθ ①
对座椅分析有：F_心=mgtanθ=mRω² ②
联立两式得ω=

gtanθ
r+Lsinθ，
答：（1）此卫星离地面高度是
3
gR2T2
4π2
-R．
（2）转盘转动的角速度ω与夹角θ的关系是ω=

gtanθ
r+Lsinθ．