<span>Nodes are points along the medium that appear to be standing still. They are points on a standing wave that has no displacement from the rest position.
Antinodes are the opposite of nodes. Those are</span> points that undergo the maximum displacement.
<span>At the nodes the destructive interference occurs</span> . For example <span>a crest of one wave meets a trough of a second wave</span> , or a half-crest of one wave meets a half-trough of a second wave...
Im pretty sure the answer is c; velocity is usually measure by a vector :)
Answer:
I think it might be 9 hz but not 100% shore though
Explanation:
Answer:
Explanation:
Given that
Beam current (i)=23.3µA
And the time to strike(t)=28s
Also, a fundamental charge e=1.602×10^-19C
Then, the charge quantity is given as,
q=it
Then, q=23.3×10^-6×28
q=6.524×10^-4C
Also, the number of electron N is given as
q=Ne
Therefore, N=q/e
So, N=6.524×10-4/1.602×10^-19
N=4.072×10^15
There are 4.072×10^15 electrons strike the tube screen every 28 s.
A pure substance because it cannot be separated into parts
