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Mechanical Engineering

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Q: A worker slowly moves a 50-kg crate to the left along a loading dock by applying a force P at corner...

A: Consider the free body diagram of the crate as shown below.

Q: Use the rectangular component method to solve the fol- lowing problems. Determine the magnitude R of...

A: Given data: F1 = 160 N F2 = 180 N Considering the given diagram:

Q: A rigid tank contains 7.5 kg of saturated water mixture at 400 kPa. A valve at the bottom of the tan...

A: Given data: *The amount of saturated water mixture at 400 kPa is m1=7.5 kg. *The pressure in the tan...

Q: A 5 x 8-ft sign of uniform density weighs 270 lb and is supported by a ball-and-socket joint at A an...

A: Tension in cable BD and EC can be written as

Q: A rigid plate, having a weight of 100 lbs acting at its center, is connected to a 'ball and socket' ...

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Q: The device shown is used to mix soils in order to provide in-situ stabilization. If the mixer is con...

A: Given Data: The inner diameter of the shaft is d = 3 in. The outer diameter of the shaft is D = 4.5...

Q: Solve Prob. 6.67 assuming that the 9-kip load has been removed.(Reference to Problem 6.67):The diago...

A: Given Structure supported with simply supported fix and a roller fix. Applied forces 6 kip, 12 kip T...

Q: Why is work done a scalar quantity?

A: Physical work is obtained as dot product of force and displacement. Since force and displacement are...

Q: R12–8. Car B turns such that its speed is increased by (a)B = (0.5e') m/s², where t is in seconds. I...

A: Given data: The tangential acceleration is at=0.5et m/s2. The expression for the acceleration is: ...

Q: Q3 List down the assumptions made in deteriming the truss.

A: Truss: Truss is a rigid structure in which all the embers are subjected to either axial tensile or a...

Q: Using primary dimensions, verify that the Rayleigh number is indeed dimensionless. What other estab...

A: The Rayleigh number is defined as:

Q: For the bracket and loading of Prob. 4.7, determine the smallest distance a if the bracket is not to...

A: When bracket is not to move, the reaction force at A will be zero i.e. the bracket will be in equili...

Q: A 3/4-in.-diameter rod made of the same material as rods AC and AD inthe truss shown was tested to f...

A: Given data: The diameter of the rod is d=3/4 in. The factor of safety of the rod is S=3.0 The free...

Q: Portions of a 1/2 x 1/2 -in. square bar have been bent to form the two machine components shown. Kno...

A: Given Data: The coss-sectional area of the squer bar is: 0.5 X 0.5 in2. The allowable stress is : σ...

Q: It is an embedded support at point A of the beam, whose loading status is given below. Find only the...

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Q: Air flows at high speed through a Herschel venturi monitoredby a mercury manometer, as shown in Fig....

A: Given data, Determine the density of fluid by using the ideal gas equation,

Q: Discuss behavioral concerns in establishing and implementing a standard cost system

A: Standard cost system is implemented by any company due to check the profitability of an organisati...

Q: 18-5. A force of P = 20 N is applied to the cable, which causes the 175-kg reel to turn since it is ...

A: The data given is, Force applied on cable, P = 20 kN Mass of the reel, MG = 175 kg The radius of gy...

Q: A pair of wedges is used to lift a crate as shown in The crate weighs 3000 N, the wedge angle 0 is 1...

A: Make free body diagram with all forces

Q: An insulated vertical piston–cylinder device initially contains 10kg of water, 5kg of which is in th...

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Q: Consider an infinitely thin flat plate with a 1 m chord at an angle of attackof 10◦ in a supersonic ...

A: Hello. Since your question has multiple sub-parts, we will solve three sub-parts for you. If you wan...

Q: A 25 MVA turbo-alternator is working on full load at a power factor of 0·8 and efficiency of 97%. Fi...

A: Given data Power of turbo alternator P = 25MVA Power factor of the alternator 0.8 Efficiency of the ...

Q: QUESTION 4. Question 4.1 Consider two fluids, one with a large coefficient of volume expansion and t...

A: Heat transfer can take place in three different modes namely conduction, convection and radiation. C...

Q: The flow rate of water flowing in a 5-m-wide channel is to be measured with a sharp-crested triangul...

A: The notch angle of the triangle weir is given as, The discharge coefficient is given as, The flow ...

Q: The two forces act on a bolt at A. Determine theirresultant.(graphical solution)

A: Applying the graphical method First of all, a parallelogram with sides equal to P and Q is drawn. Th...

Q: A 10-mm-diameter rod has a modulus of elasticity of E = 100GPa. If it is 4 m long and subjected to a...

A: Given: The diameter of the rod is d=10 mm The length of the rod is L=4 m The axial load on the rod i...

Q: A long, rectangular bar (made of Material A) under a tensile load P hangs from a pin that is support...

A: The data given is, Length of material A bar, LA = 2 m = 2000 mm The cross-sectional area of the bar...

Q: pump is placed at height of 4.5 m above the sump level find the acceleration head H if a the separat...

A: The acceleration head in the fluid flow problems is defined as the amount of energy required to acce...

Q: Determine the moments of inertia of the shaded area shown with respect to the x and y axes.

A: Diagram of the shaded area with their measurements are given as, Due to uniformity about x’ and y’,...

Q: Len is asked to design a small water pump for an aquarium. The pump should deliver 18.0 Lpm of water...

A: Given data

Q: Four tugboats are bringing an ocean liner to its pier. Each tugboat exertsa 5000-lb force in the dir...

A: Given: The force exerts by tugboats, F = 5000 lb (a) The free body diagram for the tug boats is give...

Q: 7-13. The blade of the hacksaw is subjected to a pretension force of F-100 N. Determine the resultan...

A: Given data: *The pretension force subjected in the blade of the hack saw is F=100 N. *The vertical h...

Q: 17-81. Determine the angular acceleration of the 25-kg diving board and the horizontal and vertical ...

A: Given data: The mass of the board is: m=25 kg The maximum deflection of the spring is: x=200 mm The...

Q: One kilogram of water fills a 150-L rigid container at an initial pressure of 2 MPa. The container i...

A: Given data: The initial pressure of the water P1=2 MPa. The initial temperature of the water is T1=...

Q: A vertical load P is applied at end B of rod BC. (a) Neglecting the weight of the rod, express the a...

A: Given Data: The load applied at point B is The counterweight is W. The angle of the inclination of ...

Q: Two identical hockey pucks are moving on a hockey rink at the same speed of 3 m/s and in perpendicul...

A: By using principle of impulse momentum For puck A (in Y direction) For puck B (in Y direction) Fo...

Q: P7-5. The lever is held to the fixed shaft using the pin AB. If the couple is applied to the lever, ...

A: Click to see the answer

Q: Water enters and leaves the 6-cm-diameter pipe bend inFig. P3.45 at an average velocity of 8.5 m/s. ...

A: Write the given data:

Q: You are part of a team working in a machine parts mechanic’s shop. An important customer has asked y...

A: Click to see the answer

Q: The A-36 steel bolt is tightened within a hole so that the reactive torque on the shank AB can be ex...

A: On applying torque equilibrium at the bolt,

Q: A rectangular plate 125 mm long, 10 mm wide, and 3 mm thick is formed from fused silica (aka fused q...

A: Hello. Since your question has multiple sub-parts, we will solve the first three sub-parts for you. ...

Q: Your second customer wants to determine the required electrical power, which will be used to pump wa...

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Q: A 150-lbm astronaut took his bathroom scale (a spring scale) and a beam scale (compares masses) to t...

A: Given: The mass of the astronaut is m=150 lbm The local acceleration due to gravity on the moon is g...

Q: Water in a horizontal channel accelerates smoothly overa bump and then undergoes a hydraulic jump, a...

A: Given data: *The height of the water at the point 1 is y1=1 m. *The height of the water at the point...