I think it’s C b/c it works for me
Answer:
Check the explanation
Explanation:
The beat frequency is
df = f2 - f1
the wavelength is
lamda1 = (v/f1)
and lamda2 = (v/f2)
where v = 340 m/s,f1 = 25.0 kHz and f2 = 20.0 kHz
The branch of physics that deals with the study of force energy and motion is classic mechanics
The density is about 3.88. You just have to divide the mass and the volume. You can check this on a calculator, too. Hope this helped
