Answer:
A. recycling allows resources to be reused, instead of dumped in landfills.
Explanation:
Devices such as <u>hard drives, CD recorders, and Mini DV camcorders </u>are digital devices, and therefore record data digitally, as ones and zeros.
Explanation:
The smooth analog signal matches the recorded sound wave better than the steps of a digital recording.
However, the analog medium the recording is imprinted on can have tiny imperfections that cause cracking and popping noise.
When used in reference to data storage and transmission, analog format is that in which information is transmitted by modulating a continuous transmission signal, such as amplifying a signal's strength or varying its frequency to add or take away data.
Devices such as hard drives, CD recorders, and Mini DV camcorders are digital devices, and therefore record data digitally, as ones and zeros. VCRs, tape players, and record players, on the other hand, are analog devices. This is because they record data linearly from one point to another.
Analog technologies are stilll used in :
- photocopiers.
- old land-line telephones.
- audio tapes.
- old televisions (intensity and color information per scan line)
- VCRs (same as TV)
The magnetic flux through an area A is given by
where
B is the magnitude of the magnetic field
A is the area
is the angle between the direction of B and the perpendicular to the surface A.
In our problem, the area lies in the x-y plane, while B is in the z direction, this means that B and the perpendicular to A are parallel, so
and
, so we can rewrite the formula as
We can calculate the area starting from the radius:
And then using the intensity of the magnetic field given by the problem,
, we find the magnetic flux: