生物体死亡后,它机体内原有的碳14含量
会按确定的比率衰减(称为衰减率),
与死亡年数
之间的函数关系式为
(
为常数),大约每经过5730年衰减为原来的一半,这个时间称为“半衰期”.若2022年我国某遗址文物出土时碳14的残余量约为原始量的
,则可推断该文物属于( )参考数据:
;
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/10/fd9146a0-55d6-4b29-b718-697113d7bfa2.png?resizew=509)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0edde7fbb4e3839bf5dd3c805966f7da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1213c2a26a77edc9d0615b9988474c77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4610be9f9fa18ec293d2fccb6887f673.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/10/fd9146a0-55d6-4b29-b718-697113d7bfa2.png?resizew=509)
A.战国 | B.汉 | C.唐 | D.宋 |
22-23高三上·河北邢台·期中 查看更多[3]
更新时间:2023-02-05 12:02:51
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