Answer:
hertz (Hz)
The number of periods or cycles per second is called frequency. The SI unit for frequency is the hertz (Hz).
Answer:
B
Explanation:
A diverging lens forms a virtual image that is as the same size as the object
You are trying to convert mass to volume. That ain't working
Answer: c opinion is something ppl just suggest but a theory needs proof before it is confirmed
correct option is C.
Explanation:
the best to test a hypothesis is not always the most obvious way
