the correct answer is D i just got it on USATestPrep. Your welcome.
Answer:
344.8 Hz
Explanation:
The frequency of a wave is given by:

where
v is the speed of the wave
is its wavelength
Here we have
v = 793 m/s

Substituting into the equation, we find

Answer:
c) both technician A and B
Explanation:
- A communication network is a collection of the interconnected networks that are managed to support the transfer of the information form a user in one network location and to a user of the another node.
- Are connected as the link and to enable the communication and sharing of the data between the terminals and different modules. Hence both the A and B technicians are equally correct.
One strand has the ability to for form its corresponding strand by means of the deoxy nucleosides existing in the cell. But conversely, if both the arrangements of DNA are impaired, then it would be impossible for the DNA to generate two strands that happened of same match from the current nucleosides. Henceforth, one strand damage can be remembered but double stranded can be lasting or permanent.