Answer:
13. 8 hrs
12. 8.89 meters per second squared
11. -0.75 meters per second squared
<h3><u>Answer;</u></h3>
160 g
<h3><u>Explanation;</u></h3>
1 mole of a compound contains a mass equivalent to the relative formula mass of that particular compound.
the formula of iron oxide is Fe2O3
R.A.M of Iron = 56 , while that of oxygen is 16
RFM = (56 ×2) + (16 ×3)
= 112 + 48
= 160
Therefore, 1 mole of Iron oxide contains 160 g
Answer:
3 2/3 ft to the right
Explanation:
The picture of the question in the attached figure N 1
To better understand the problem see that attached figure with letters N 2
we know that
If two figures are similar, then the ratio of its corresponding sides is proportional
In this problem
Triangle A.D.F is similar to Triangle B.D.E ----> by AA Similarity Theorem
so

we have

substitute

solve for E.D

E.D is the length of the shadow
so
The person should move to the right x feet

convert to mixed number
