The answer is d I'm pretty sure because the second one and the first one don't make sense but I'm not 100 percent positive about it not being d ..... sorry if it's wrong.
Answer: 3m/s
Explanation:
Given that:
Wavelength (λ)= 2m
Frequency F = 1.5Hz
Speed of wave = ?
The wavelength is the distance covered by the wave in one second. It is measured in metre per second, and represented by the symbol V
So, apply V = F λ
V = 1.5Hz x 2m
V = 3 m/s
Thus, the speed of the wave is 3m/s
fusion and fission
Explanation:
the nuclear energy is released by fusion when the nuclei of two atoms are combined while the fission is process when the nucei of two atoms split apart
BaCl2 and KOH :
<span>BaCl2 + 2 KOH = Ba(OH)2 + 2 KCl
</span>
hope this helps!