Physics Unit33: Astrophysics and Cosmology (id: 8a159f78a)

本题目来源于试卷: Physics Unit33: Astrophysics and Cosmology，类别为 国际高中通用物理

[单选题]
It can be shown that the apyh5y,bn ) - tgoh1kd/wproximau2y xz *0xd4beuow8y.te age of the universe is 1/H, where H is the Hubble constant. Taking H = 20 km/s/Mly, estimate thu 0e. yo4 xbd2zxuyw8*e age of the universe, in years.

A. 15 thousand years
B. 15 million years
C. 15 billion years
D. 15 trillion years


参考答案:  C


本题详细解析: 暂无

微信扫一扫，分享更方便