The electromagnetic wave shown above is made up of vibrating Electric fields.
I assume this is why electromagnetic waves can travel through a vacuum, due to lack of matter.
Answer:
Depending on the locomotive, it can use steam, batteries or a diesel engine.
A car uses a DC battery to start it and an internal combustion engine to run it (unless it is an electric car, then it uses DC batteries.
A portable media player can use either a/c or a battery.
A flashlight uses DC batteries.
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)
What do radio waves and microwaves have in Common?
<u>A) Both are at the ideological the spectrum that has the lowest frequency. </u>
B) Both are at the spectrum that has the shortest wavelengths.
C) Both have higher frequencies than visible light.
-548.08 is the answer to your question.. Good luck :)