Physics Unit8: Rotational Motion (id: f3e055913)

[单选题]
A pulsar (a rotating54k2+mi 9 5itrq awn6cjw,ofwk3ckic+pqk 7( +2kfm p neutron star) emits pulses at a frequency of 0.40 kHz. The periodqk(i 3p cm7pk+ck2k +f of its rotation is

A. 2.5 ms.
B. 2.5 s.
C. 0.025 s.
D. 25 ms.


参考答案:  A


本题详细解析: 暂无