Answer:
1. A substance that can be separated into two or more substances only by a chemical change is a(n) _____.
solution
element
mixture
compound
2.
Which of the following materials is a substance?
air
gasoline
stainless steel
silver
3.
The first figure in a properly written chemical symbol always is _____.
boldfaced
capitalized
italicized
underlined
4.
Which of the following represents a compound?
H
H-3
H2O
O-16
5. What do chemical symbols and formulas represent, respectively?
elements and compounds
atoms and mixtures
compounds and mixtures
elements and ions
Explanation:
I have no idea my dude sorry
Answer: Glands
Explanation: Glands are the structures of the endocrine system that produce and secrete hormones.
V = at + V0
where v0 is the initial speed, a is the acceleration and t is the time.
So:
v = 5m/s^2*5s + 25m/s = 50 m/s
Answer:
Thus, the induced current in the coil at
is 9.98 A.
Explanation:
Faraday's law says

where
is the number of turns and
is the magnetic flux through the square coil:
Now,



;
therefore,



is the emf induced in the coil.
Now, the loop is connected to
resistance; therefore, at 





Thus, the current in the coil at
is 9.98 A.