3420m
Explanation:
Given parameters:
Length of path = 6200m
time taken for the horse to run = 22.5min
speed = 152meters/minute
Unknown:
Distance run by the horse = ?
Solution:
Speed is the rate of change of distance with time.
Speed = 
Distance = speed x time
Distance = 152 x 22.5 = 3420m
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T1 = 14⁰C = 273 +14= 287 K
T1 = 29⁰C =273 +29 = 302 K
V1 = 4.5 L
P = constant
T1/T2 = V1/V2
287/302 = 4.5/V2
V2= 302*4.5/287 = 4.7L
V2 = 4.7 L
This problem is honestly, very easy. Just grab a periodic table and find the element in Group 1 and Period 7. But first, let's discuss how the elements are arranged systematically in a periodic table. There are a lot of scientists who contributed to it, but the most famous one is Dimitri Mendeleev. He arranged the elements according to their atomic number. The elements starts from 1 which is Hydrogen up to the heaviest known elements which is Oganesson with an atomic number of 118. As you can observe, there is a gap between groups 3 and 4. This is done so that the periodic table does not take too much space horizontally. Thus, they are just placed at the bottom. These elements are called lanthanides (upper row) and actinides (lower row). The rows in the periodic table are called groups, and the columns are called periods.
Now, the element at the lower left corner (Group 1, Period 7) is Francium, abbreviated as Fr. It has an atomic number of 87. Some elements are actually synthesized, but Francium is a naturally occurring radioactive element. It was discovered by Marguerite Perey in France.
Enzymes speed up chemical reacations
endothermic is when you are putting energy in it controls the rate of how fast it goes not to slow not to fast