Answer:
Low temperatures slow down chemical reactions, the action of enzymes, and delay or inhibit the growth and activity of microorganisms. The lower the temperature, the slower the chemical reactions, enzymatic action and bacterial growth will be.
Explanation:
Refrigeration consists of keeping the products at low temperatures, but above their freezing temperature. Refrigeration prevents the growth of microorganisms that can withstand temperatures above 45º C and many that can survive temperatures ranging from 15 to 45º C. If we lower the storage temperature of perishable foods, we will be able to significantly reduce the speed of reproduction of the vast majority of microorganisms, which cause decomposition and generate possible diseases in consumers. Refrigeration decelerates the metabolism of organic matter until it stops almost completely when we reach -18 ° C (international conservation standard for most frozen products), in addition to achieving partial or total inhibition of altering processes in food, such as certain enzymatic reactions or the metabolic degradation of proteins, thus delaying the decomposition of these.
Answer:
I don't have space for the download can't you send screenshot
At impact, the force due to gravity is =
F
=
m
g
, where we see that a larger force corresponds to a larger mass. To rectify this with your intuition, as in a brick would hurt more if it landed on my head when dropped from a higher distance -- This is true (I don't recommend experiment), but the relevant quantity is
i
m
p
u
l
s
e
, which you can look up, or a more careful analysis of the acceleration of the brick when it lands on something, where we see that at contact, in a very short period of time, the velocity goes from →0
v
→
0
, so the force experienced is:
==∼ΔΔ=−0
F
=
d
p
d
t
=
m
d
v
d
t
∼
m
Δ
v
Δ
t
=
v
−
0
t
ϵ
Where we see that the faster the brick slows down (
t
ϵ
) the larger the force experienced by the brick (and equally and oppositely, your head), which I think is more in the vein of what you are asking.
Answer:
C.
Explanation:
Ecosystems like wetlands can break down pollutants and purify water. Soil formation is caused by primary succession in ecosystems. Never heard of hellstle sources so sorry if I got this wrong.
