ANSWER:
5
Explanation:
Because they are elven in numbers
First figure shows the object position
Second shows the image position
Third shows the focal length.
The answer is: none of the above.
Explanation:
When light reflects from a surface, the frequency, wavelength, and speed do not change. They remain the same.
Atoms are the smallest unit of an element
Answer:
v =2.02
Explanation:
v^2=0.05-4.9
v^2=-4.85
square root both side
v=2.02
^^^^this is a not a perfect square