Answer:
43.89 m/s
Explanation:
395000 meters/9000 seconds is 43.889 meters/second Speed = distance/time so we have 395000/9000 = 43.89 m/s.
Answer:
Iron is a element
Explanation:
a substance that cannot be broken down into simpler substances by chemical means, and is characterized by its atomic number, , which represents the number of positively charged particles within that element's nucleus
The metal’s feely moving sea of electrons
The answer is A) variable. The depression level is a value that varies with the respondents and may inform you about the relationship between depression and other variables, such as alcohol use or sleep habits. It is also likely a discrete variable, since the answer is probably an integer (1, 2, ... 10), rather than a continuous spectrum (virtually any number between 1 and 10).
The signs that there is a chemical reaction are
-color change
-a precipitate (a solid was formed)
