It's the distance between the middle of the lens to the focus.
Explanation:
<em>A.</em><em> </em><em>Stems</em><em> absorb water from the soil.</em>
<em>B.</em><em> </em><em>Stems</em><em> transport water and minerals.</em>
<em><u>Hope</u></em><em><u> this</u></em><em><u> helps</u></em><em><u> you</u></em>
<em><u>have</u></em><em><u> a</u></em><em><u> good</u></em><em><u> day</u></em><em><u>.</u></em>
Answer:
c.It is producing either a 435-Hz sound or a 441-Hz sound
Explanation:
Beat is a phenomenon of interference that occurs when two waves with slightly different frequency interfere with each other. When this occurs, the frequency of the beats is given by
(1)
where f1, f2 are the frequencies of the two waves.
In this problem, we have 6 beats every 2 seconds, so the beat frequency is
We also know the frequency of one of the two sounds,
So according to eq.(1), this means that the sound of the second trombone can have 2 different frequencies:
Grass-Rabbit-Snake-Hawk
tree-deer-Mountain lion
hope this helps
Answer:
If there is a system of magnets being held in place, there is potential energy. When you let go the potential energy makes to kinetic energy and the magnets move.