Answer:
56.47%
Explanation:
Determine the efficiency of the Engine
Given data : T1 (k) = 325, P1 (kpa) = 185,
V1 (cm^3) = 410 , r = 8, T3(k) = 3420
speed ( RPM) = 4800
USING THIS FORMULA
efficiency ( <em>n </em>) =
= 1 - = 1 - (1/8^1.4-1 )
= 0.5647 = 56.47%
Answer:
T_{f} = 90.07998 ° C
Explanation:
This is a calorimetry process where the heat given by the Te is absorbed by the air at room temperature (T₀ = 25ºC) with a specific heat of 1,009 J / kg ºC, we assume that the amount of Tea in the cup is V₀ = 100 ml. The bottle being thermally insulated does not intervene in the process
Qc = -Qb
M (T₁ -) = m (T_{f}-T₀)
Where M is the mass of Tea that remains after taking out the cup, the density of Te is the density of water plus the solids dissolved in them, the approximate values are from 1020 to 1200 kg / m³, for this calculation we use 1100 kg / m³
ρ = m / V
V = 1000 -100 = 900 ml
V = 0.900 l (1 m3 / 1000 l) = 0.900 10⁻³ m³
V_air = 0.100 l = 0.1 10⁻³ m³
Tea Mass
M = ρ V_te
M = 1100 0.9 10⁻³
M = 0.990 kg
Air mass
m = ρ _air V_air
m = 1.225 0.1 10⁻³
m = 0.1225 10⁻³ kg
(m c_{e_air} + M c_{e_Te}) T_{f}. = M c_{e_Te} T1 - m c_{e_air} T₀
T_{f} = (M c_{e_Te} T₁ - m c_{e_air} T₀) / (m c_{e_air} + M c_{e_Te})
Let's calculate
T_{f} = (0.990 1100 90.08– 0.1225 10⁻³ 1.225 25) / (0.1225 10⁻³ 1.225 + 0.990 1100)
T_{f} = (98097.12 -3.75 10⁻³) / (0.15 10⁻³ +1089)
T_{f} = 98097.11 / 1089.0002
T_{f} = 90.07998 ° C
This temperature decrease is very small and cannot be measured
The section(s) of the Code emphasize that all circuiting must be done so as to avoid the damaging effects of induction heating is 300.35, 300.3(B), and 300.20(A).
<h3>What is induction heating?</h3>
The term induction heating is known to be a form of heating of material that occurs via an electric current that makes a flow via the material or its container through the means of electromagnetic induction.
Hence, The section(s) of the Code emphasize that all circuiting must be done so as to avoid the damaging effects of induction heating is 300.35, 300.3(B), and 300.20(A).
Learn more about heating from
brainly.com/question/13982702
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Answer:
R = 26 m and R = 14 m
Explanation:
For two displacements two we can have several results, let's analyze each one of them
- collineal vectors, in the same direction
R = A + B
R = 20 +6
R = 26 m
- Vectors in the opposite direction
R = A-B
R = 20-6
R = 14 m
- angled vactors
R = √ (A² + B²)
R = √( 20² + 6²)
R = 20.88 m
We can see that the displacements are maximum and minimum when the vectors are collinear
Answer: B) 5
Explanation:
The given data are:-
Bank Reserve Requirement = 10%
additional percentage held as excess reserves = 10%
Therefore, total reserve ratio will be = 20% = 0.2
Now using the money multiplier formula which is;
Money Multiplier = 1 / reserve ratio
Money Multiplier = 1 / 0.2
Money multiplier = 5
This simply means that a single dollar in new reserve will lead to 5 dollars in additional money through the Multiplier process.