Answer:
the answer is 3.3 %
Explanation:
This question involves the concepts of derivative, apparent temperature, actual temperature,and wind speed.
The drop in apparent temperature will be "1.25°C".
The apparent temperature (W) is given in terms of actual temperature (T) and wind speed (v) is given by the following function:
Taking the derivative with respect to actual temperature, we get:
where,
dW = drop in apparent temperatures = ?
dT = drop in actual temperature = - 1°C
v = wind speed = 18 km/h
Therefore,
dW = - 1.25°C
Learn more about derivatives here:
Answer:
Δw=1.25°C
Explanation:
Given that
Given that T= 12°C and v=19 km/h
Now to find the drop in the apparent temperature w
So
Now by putting the values v=19 km/hr and ΔT=1
Δw=1.25°C
So we can say that when temperature is decrease by 1°C then apparent temperature will decrease by 1.25°C at given velocity.
Answer:
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Explanation:
Answer:
Flow stress= 9390Psi
Average flow stress= 4173.33Psi
Explanation:
Given:
Strength Coefficient = 75000psi
Strain hardening Exponent = 0.25
Gauge length = 2inches
Stretch length = 3.3 inches
Flow stress,Yf = 75000 × ln(3.3/2) × 0.25
Yf = 75000× ln(1.65) × 0.25
Yf = 75000× 0.5008 × 0.25
Flow stress = 9390Psi
Average flow stress = 75000× 0.5008 × (0.25/2.25)
Average flow stress= 4173.33psi
Answer:
The final temperature is 50.8degrees celcius
Explanation:
Pls refer to attached handwritten document
Answer: 50.63° C
Explanation:
Given
Length of heater, L = 200 mm = 0.2 m
Diameter of heater, D = 15 mm = 0.015 m
Thermal conductivity, k = 5 W/m.K
Power of the heater, q = 25 W
Temperature of the block, = 35° C
T1 = T2 + (q/kS)
S can be gotten from the relationship
S = 2πL/In(4L/D)
On substituting we have
S = (2 * 3.142 * 0.2) / In (4 * 0.2 / 0.015)
S = 1.2568 / In 53.33
S = 1.2568 / 3.98
S = 0.32 m
Proceeding to substitute into the main equation, we have
T1 = T2 + (q/kS)
T1 = 35 + (25 / 5 * 0.32)
T1 = 35 + (25 / 1.6)
T1 = 35 + 15.625
T1 = 50.63° C