Answer:
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Explanation:
Answer: its an Ignition coil
The pressure at the point on the roof where the speed is 60mph is 14.66 psi
<u>Explanation:</u>
The question follows Bernoulli's equation
P1 + 1/2 ρ V1² = P2 + 1/2 ρ V2²
V1 = 40 X 5280 / 3600 = 58.7 ft/s
V2 = 60 X 5280 / 3600 = 88 ft/s
P2 = P1 + 1/2 ( 0.00238 ) [(58.7)² - (88)²]
P2 - P1 = -5.12lb/ft²
The negative pressure created tends to lift the roof.
We know,
P1 = 14.7 psi = 2116.8 lb/ft²
P2 = 2116.8 - 5.12 lb/ft²
P2 = 2111.68 lb/ft²
P2 = 14.66 psi
Therefore, the pressure at the point on the roof where the speed is 60mph is 14.66 psi
Answer:
Maximum inside diameter is 68.52 mm.
Explanation:
Apply stress formula to calculate inside diameter of the tube. Take the allowable stress for safe design and maximum inside diameter of the steel tube.
Step1
Given:
Outside diameter is 100 mm.
Tensile load is 500 kN.
Allowable stress is 120 Mpa.
Calculation:
Step2
Inside diameter is calculated by the stress formula as follows:




mm
Thus, the inner diameter is 68.52 mm.