Answer:
Frequency describes the number of waves that pass a fixed place in a given amount of time.
When you're working with units of measure, "micro" almost always means "millionth", or 1 x 10⁻⁶ . And that's exactly the case in this example.
"1.5 micrometer" = 1.5 millionths of a meter, or <em>1.5 x 10⁻⁶ meter.</em>
1. H<span>aving to push a rough and heavy box across the floor to move it.
2. </span><span>The coefficient of sliding friction will decrease.
3. G</span>reater than <span>the friction involved in rolling an object.
4. D</span><span>rag.
5. S</span>liding (kinetic) friction. Sliding friction<span> is also known as </span>kinetic friction - force that is needed to keep a surface sliding<span> along another surface.</span>
The correct answer is a substance that is composed of hydrogen atoms bonded to oxygen atoms
1) C
2) 2[A]
3) 2[A]
4) a less bright (?)
b 1 [A]
c 1 [A]
5) brighter (?)
6)
a 0.8 (if it is the one on the right of 6)
b 0.4 [A]
c 0.4 [A]
d depends on where you place it.
7)
a place it next to X, right or left
b place it just after the source
(?) = not sure
If you have more questions ask.
