What is the mechanism behind an automatic boom barrier?

Q: For the figure below, all dimensions in inch. A/The total Area y 3 1.5 2.5 2.5 2.5 2.5

A: Total Area of shaded region=(area of triangle)+(area of trapezium)-(area of circle). Area of triangl...

Q: A closed vessel comprises air at a pressure of 140 kPag and temperature of 20°C. Assuming that atmos...

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Q: A particle which moves with curvilinear motion has coordinates in millimeters which vary with the ti...

A: expression are differentiated to get the value of velocity and acc. Answers: v = 5.517  mm/s      th...

Q: 5: What is the period of a wave of frequency 30 Hz?

A: Q16. To find Period of wave.    

Q: VA runner in a 1000 m race 10.10 accelerates uniformly for first 400m and then runs at constant 14.4...

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Q: eat expulsion occurs in what section of a heat pump system when operating in the heat mode? A. accu...

A: Heat expulsion means removal of heat from the system,

Q: 1- Air flows through a device such that the stagnation pressure is 0.6 MPa, the stagnation temperatu...

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Q: Neglect the friction of the 40-lb collar against its vertical guide and compute the velocity of the ...

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Q: 3. Find the minimum diameter of a smooth tube to ensure the flow of water at an average velocity of ...

A: Average velocity, V= 100 cm/s= 1 m/s Kinematic velocity, νwater=10-6 m2/s Flow is turbulent   NOTE: ...

Q: Q5/A/ A runner in a 1000 m race accelerates uniformly for first 400m and then runs at constant veloc...

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Q: A ball has a mass of 30 kg and a speed of 4 m/s the instant it is at the lowest point 0 0°. Determin...

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Q: Q4/ For the figure below, all dimensions in inch. A/The total Area: y 3 1.5 2.5 2.5 2.5 2.5 Q4/C/ Th...

A: Given cross-section

Q: with a stress of 52.89  and diameter of 4cm and thickness of 2mm  (P) load of 2MPa how was the an...

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Q: Problem (5.4) A nozzle in an impulse turbine delivers 1 kg/s steam to a set of blades moving at 200 ...

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Q: Problem 04.077- Determine the deflection of an angled bar using Castigliano's theorem Using Castigli...

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Q: 11. A nylon string has a diameter of 2 mm, pulled by a force of 100 N. Determine the stress. A. 21.3...

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Q: 3.8 The two springs are identical, with unstretched lengths of 250 mm. Suppose that their spring con...

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Q: A 10.0 m long with a cross sectional area 180 mm? copper rod carries a tensile load of 5 kN at 30°C....

A: Given Data  L=10 m=104 mm A=180 mm2 P=5 kN T=30°C To=20°C E=117 GPa a=17*10-6    

Q: Steam at a temperature of 723 K is flowing through a pipe with an outer diameter of 100 mm. The pipe...

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Q: "The reaction at A is * 40N 200 mm В 300 mm 20N 300mm 45°

A: Let FBX and FBY are the horizontal and the vertical reactions at the hinge support B respectively. L...

Q: critical damping of the system.

A: Given: A vibratory system consists of a mass=16.5 kgSpring of stiffness=1350 N/mcoefficient=15 Ns/mV...

Q: A 60 mm diameter pipe has a discharge of 450 litre/min. At a section the pipe has a sudden expansion...

A: We know that a pipe with a diameter of 60 mm may discharge 450 litres per minute. The pipe suddenly ...

Q: /The acceleration is defined by the relation a=(8-0.6 v). Knowing that the initial velocity is 14 m/...

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Q: When selecting a refrigerant for a certain application, what qualities would you look for in the ref...

A: There are five major factors that engineer must consider in selecting a refrigerant for a particular...

Q: Determine the mass of block A so that when released from the rest, move block B of 8 kg at a distanc...

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Q: 6. Four pounds of air gain 0.491 Btu/°R of entropy during a nonflow isothermal process. If p, 120 ps...

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Q: 3. A car traveling at 20 m/s when the driver sees a child standing in the road. He takes 0.80 s to r...

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Q: 5. The bars BC, DG, and HI each have cross-sectional area A 180 mm and modulus of elasticity E 220 G...

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Q: Detemine the angular velocity of the link CB at the instant shown measured clockwise, if the link AB...

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Q: Q5/A/ A runner in a 1000 m race accelerates uniformly for first 400m and then runs at constant veloc...

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Q: If the mass flow rate of steam is 11 kg/s in steadystate turbine, find the shaft output (W) in kW P1...

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Q: What are the values of Cp and Cv (in kJ/kg-K), given that for a certain ideal gas, R is 0.277 kJ/kg-...

A: What are the values of Cp and Cv (in kJ/kg-K),

Q: 6. What is the kettle boiler? How it differs from water tube boiler and fire tube boiler. 7. Give im...

A: Since we only solve one question at a time, we will answer the first one. Please resubmit the questi...

Q: At the instant shown, bar AB has a constant counterclockwise angular velocity of 4 rad/s. Determine ...

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Q: Q4/ For the figure below, all dimensions in inch. A/The * : total Area y 1.5 2.5 2.5 2.5 2.5 3.

A: Answer: The total area of shaded area is 25.93363 in2.  

Q: 5. When unloaded, bars AB and AC are each 36 - in long and have a cross-sectional area of 2 in. Thei...

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Q: Required information A steel bar (Es= 210 GPa) and an aluminum bar (Ea = 70 GPa) are bonded together...

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Q: A supersonic flow at M = 3, T1 = 295 K, and pi = 3 atm is deflected upward through a compression cor...

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Q: The flow is

A: Given: In a langrangian system is defined in which individual fluid paticlesare tracked.The position...

Q: Compute the coordinates of the centroid (a, y) of the area shown. Also compute the area moment of in...

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Q: :Q2/c/ the reaction By is 40N 200 mm 33.5 N O IB 24.5 N O 300 mm | 20N 20.5 N O 300mm 22.5 N O 13.5 ...

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Q: A clamping vice uses a single acting cylinder to clamp the work-pieces. Determine the extend force i...

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Q: Determine the resultant moment produced by the two forces about O located at the tip of the drill. 6...

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Q: 2.18 The rigid bar AB is supported by two rods made of the same material. If the bar is horizontal b...

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Q: Q3/B) The direction of the * resultant approximately is 20 N 75 N -35 O 45° 35 O 50 N 150 N -42 45 2...

A: Consider a body or a particle subjected to various forces in xy plane then calculate the net horizon...

Q: A thin aerofoil of chord length 1 m, with small angle of attack flying at a speed of 111 m/s is appr...

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Q: QUESTION 5 Determine the power transmission through the shaft of a car when the torque applied is 20...

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Q: The 1 kg C ring fits freely on the smooth shaft. If the spring is free when s = 0 a %3| ring is give...

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Q: Consider a belt drive that transmits 10 kW of power between two parallel shafts. The center-to-cente...

A: Given: kW=10 C=2 m N2=100 rpm N1=240 rpm D1=2R1=2*300=600 mm =.6 m μ=.2 wb=150 mm tb=12 mm N2N1=D1D2...

Q: heat from a small motorcycle engine. If the average engine surface temperature is 112 C, determine t...

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