Attractive Property – Magnet attracts ferromagnetic materials like iron, cobalt, and nickel.
Repulsive Properties – Like magnetic poles repel each other and unlike magnetic poles attract each other.
Directive Property – A freely suspended magnet always points in a north-south direction.
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Answer:
1) Ethyl alcohol ( ethanol)
2) di methyl ether(methoxymethane)
Explanation:
1) Ethyl alcohol ( ethanol)
CH₃ - CH₂ - OH
H H
H - C - C - O - H
H H
2) di methyl ether(methoxymethane)
CH₃ - O - CH₃
H H
H - C - O - C - H
H H
Hello, for this applicate formula:
Vf² = Vo² + 2gh
Data:
Vf = Final Velocity = ¿?
Vo = Initial veloctiy = 0 m/s
g = Gravity = 9,81 m/s²
h = Height = 5 m
Replacing according our data:
Vf² = 0 m/s² + 2(9,81 m/s²)(5 m)
Vf² = 98,1 m²/s²
Vf = √98,1 m²/s²
Vf = 9,9 m/s
The final velocity will be <u>9,9 meters per second.</u>
Percentage error:
1.55 – 1.53 ÷ 1.53
0.02 ÷ 1.53
.013 x 100
1.3 % error
I hope this is right.
We know that d=m/v where d is density, m is mass and v is volume. Lets transform formula to get v in times of d and m
![d= \frac{m}{V} /*V \\ V*d=m /:d \\ V= \frac{m}{d}](https://tex.z-dn.net/?f=d%3D%20%5Cfrac%7Bm%7D%7BV%7D%20%20%2F%2AV%20%5C%5C%20V%2Ad%3Dm%20%2F%3Ad%20%5C%5C%20V%3D%20%5Cfrac%7Bm%7D%7Bd%7D%20)
Now we have to substitute our data to formula
V=
![\frac{3.2}{16.8}=0.19](https://tex.z-dn.net/?f=%20%5Cfrac%7B3.2%7D%7B16.8%7D%3D0.19%20)
ml - its the answeer