Answer:
R₂ / R₁ = D / L
Explanation:
The resistance of a metal is
R = ρ L / A
Where ρ is the resistivity of aluminum, L is the length of the resistance and A its cross section
We apply this formal to both configurations
Small face measurements (W W)
The length is
L = W
Area
A = W W = W²
R₁ = ρ W / W² = ρ / W
Large face measurements (D L)
Length L = D= 2W
Area A = W L
R₂ = ρ D / WL = ρ 2W / W L = 2 ρ/L
The relationship is
R₂ / R₁ = 2W²/L
Explanation:
The work done equals the change in energy.
W = ΔKE
W = 0 − ½mv²
W = -½ (0.270 kg) (-7.50 m/s)²
W = -7.59 J
Work is force times displacement.
W = Fd
-7.59 J = F (-0.150 m)
F = 50.6 N
<span>The answer of these two problems are :
A) a = (F-W)/m = (100-500)/500/g = 9.8*500/500 = +9.8
m/sec^2
B) a1 = +9.8-g = 0</span>
The products should she record in the last row of the table : <u>2LiCl + 3O₂</u>
<h3>Further explanation</h3>
There are several chemical reactions, namely:
-
Formation reaction
-
Decomposition reaction.
- Replacement reaction.
-
Multiple replacement reactions
-
Neutralization reaction.
-
Combustion reaction.
-
Polymerization
The decomposition reaction in a chemical reaction shows the decomposition reaction of a compound into its constituent elements or compounds
Rosa recorded three similar decomposition reactions
Reactions that occur :
1. 2 NaClO₃ ⇒ 2NaCl + 3O₂
2. 2KClO₃ ⇒ 2KCl + 3O₂
3. 2LiClO₃ ⇒ 2LiCl + 3O₂
There are similarities in the decomposition that forms oxygen and chloride compounds
Learn more
homogenous mixture of two or more pure substances
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Keywords : products, patterns, chemical reaction, table, decomposition reactions
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Answer:
a. β = 8.23 K
b. β = 28.815 K
Explanation:
Heat pump can be find using the equation
β = TH / TH - TC
a.
TH = 15 ° C + 273.15 K = 288.15 K
TC = - 20 ° C + 273.15 K = 253.15 K
β = 288.15 K / 288.15 k - ( 253.15 K )
β = 8.23 K
b.
TH = 15 ° C + 273.15 K = 288.15 K
TC = 5 ° C + 273.15 K = 278.15 K
β = 288.15 K / 288.15 k - ( 278.15 K )
β = 28.815 K
