Find the wavelength of the ultrasonic wave (343 m/s) emitted by a bat if it has a frequency latex 4.0* 10^4 Hz.?
回答 (2)
2017-03-10 6:08 pm
Wavelength
= Speed / Fequency
= (343 m/s) / (4.0 × 10⁴ Hz)
= (343 m/s) / (4.0 × 10⁴ /s)
= 8.6 × 10⁻³ m
(to 2 sig. fig.)
= Speed / Fequency
= (343 m/s) / (4.0 × 10⁴ Hz)
= (343 m/s) / (4.0 × 10⁴ /s)
= 8.6 × 10⁻³ m
(to 2 sig. fig.)
2017-03-10 5:44 pm
hrthrt
收錄日期: 2021-04-20 19:33:18
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20170310094441AAWJiFT