I think it is 3. <span> radiation received from the sun</span>
Answer:
the positive charge is the period number
Explanation:
I might be wrong
Answer:
<h2><em><u>C. It must reflect red light wavel</u></em></h2>
Explanation:
<em>The color of the object is reflected by the object other colors are absorbed by the object.</em>
Here <em>object appears in red color so red color is reflected by the object and other colors are absorbed.</em>
Answer: His average speed in mph over the last 400 m is 7.7 m/s.
Explanation:
Given: Hicham El Guerrouj of Morocco holds the world record in the 1500 m running race. He ran the final 400 m in a time of 51.9 s.
We know that , speed =
Here , distance = 400m and time = 51.9 s
Then, speed =
Hence, his average speed in mph over the last 400 m is 7.7 m/s.
The main purpose of gel electrophoresis is to separate the molecules based on their different electric charge.
Hope this helps!