Answer:
D
Explanation:
HR or human resources, is a division in a company which helps out with recruitment and other human related issues, some including counselling work so I would guess D
From the theory we know that:
c = λ / T
f = 1 / T
Where:
c = 3.
/ m (the speed of light)
λ is the wavelengh (in meters)
T is the period (in seconds)
f is the frequency (in Hz)
We were told that:
f = 7.30 .
And we want to find out the value of λ.
c = λ / T
c = λ . 1/T
Swaping 1/T = f
c = λ . f
λ = c / f
λ = 3 .
/ 7.30 . 
λ = 4.12
m
Response: 4.12
m = 412 nm
:-)
Answer:
the second one Test the rate of decay of specific elements in rock samples.
Answer:
C.
The vibrational energy of the waves is converted into electrical signals and sent to the brain.
Explanation: