Problem: so- if a wave has a wave speed of 1000 M/S anything see a 500 HZ, what is its wavelength?

Given

speed = 1000 m/s or velocity (v) = 1000 m/s

frequency (f) = 500 Hz

wavelength (λ) = ?

We know,

λ = v/f

λ = 1000/ 500

λ = 2 m

It's wavelength is 2 m.

Hope it will help :)

number of molecules / avogadro's number * molecule molecular = mass

explanation:

we define a gram-molecular weight as the mass of one mole of any element or compound. a mole contains avogadro's number of units (molecules) –  

6.022

x

10

23

. so, dividing the number of molecules by avogadro's number gives us the number of moles. multiplying that by the molecular weight gives us the mass. from the periodic table we find the gram-molecular weight of u to be238 and of f to be19. so,  

u

f

6

will have a gram-molecular weight of 352g.

the link still does not work even when adding it to the url bar

explanation: