The entire branch OA has a mass of 180 kg with mass center at G. Determine the moment of the weight of this branch about point O.

Q: A rocket sled is a test platform that slides along a set of rails, propelled by rockets. During a tr...

A: Given data: The acceleration of the rocket is a = 3t2 m/s2. The velocity after acceleration is v = ...

Q: Refrigerant-134a at 700 kPa, 70°C, and 8 kg/min is cooled by water in a condenser until it exists as...

A: given: refrigerant 134a  pressure= 700kpa  temperature=70 digree celicus condenser pressure=300kpa t...

Q: 17-58. The wood column is fixed at its base and can be as- sumed fixed connected at its top. Determi...

A: Given data: The modulus of elasticity, E = 12 GPa. The yield stress, σy = 56 MPa. The length of the...

Q: A force of 3 N stretches a spring by 1 m.(a) Find the spring constant k.(b) Amass of 4 kg is attache...

A: givenForce applied to spring F=3Nspring streched δ=1mAmass of 4 kg is attached to the spring.At t = ...

Q: A piston–cylinder device contains 4 kg of argon at 250 kPa and 35°C. During a quasi-equilibrium, iso...

A: From the first law of thermodynamics,                                   Qin+Win-Wout=∆U For isotherm...

Q: The heat production from a normal healthy person when asleep (basal metabolic rate) is about Options...

A: The basal metabolic rate can be defined as the minimum number of calories required by a person to su...

Q: 10-102 Determine the moment of inertia of the compos- ite body shown in Fig. P10-102 with respect to...

A: The density of a material .

Q: A pressure cooker 6 ltr

A: Given data: Volume of cooker = volume of water (liquid-vapor mixture) = 6 lit=6×10-3 m3. Mass of wat...

Q: Refrigerant-134a enters a 28-cm-diameter pipe steadily at 200 kPa and 20°C with a velocity of 5 m/s....

A: Ans(A) Volume flow rate at inlet V1=A1v1=πD44v1=π(0.28)24(5)=0.3079m3/s

Q: Determine the radii of gyration for the area of the with respect to isosceles triangle shown in Fig....

A: The area of the given isosceles triangle is

Q: 13-27. The conveyor belt is moving downward at 4 m/s. If the coefficient of static friction between ...

A: given mass=15 kg  static friction cofficient=0.8 velocity =4 m/s  

Q: Seatwork: Show your complete solution. Use 4 decimal places.  Thermal Stress:   A prismatic bar at ...

A: Write down the given values along with suitable variables.

Q: M1 M2 m L1 L2 Two parts shaft of lengths L, = 2.5 m, L, = 2.0 mis loaded by two concentrated moments...

A: Given dataMotor power, P=100 kWfrequency, N=1800 rpmlength between section 1 and 2 is L1=2 mshear mo...

Q: 14-93. The 10-kg sphere C is released from rest when e = 0° and the tension in the spring is 100 N. ...

A: Position of string 1: (at theta at position 1) Position of string 2: (at theta at position 2)  

Q: *17-40. The smooth 180-lb pipe has a length of 20 ft and a negligible diameter. It is carried on a t...

A: For Normal reaction at point AWe have∑MB=∑M -W×10×1213+NA×13=-max×10×513 -W×10×1213+NA×13=-Wgax×10×5...

Q: Al m-piece of copper wire (diameter = 4.05 mm) is used to hang a large display item from the ceiling...

A: Given Data⇒d=4.05 mmm=7 kgE=1011Nm2we need to determine how much this wire will stretchε

Q: The built-up shaft is designed to rotate at 450 rpm. If the radius of the fillet weld connecting the...

A: givenrpm N=450rpmthe radius of the fillet weld connecting the shafts is r = 13.2 mmthe allowable she...

Q: If a man weighs 210 lb at sea level, determine the weight W of the man at the top of Mt. Everest (29...

A: GIVEN : weight of man at sea level=210lb

Q: Solid and hollow shafts are most often used to provide power transmission of the rotating motion fro...

A:

Q: An engine is working on Otto cycle with the following specifications: Pressure and temperature of th...

A: Given: P1=1 barT1=27°C=27+273=300 Kr=V1V2=5P3=32 barn=1.25D=12 cm=0.12 mL=20 cm =0.2 mN=550 rpm To d...

Q: Air enters the evaporator section of a window air conditioner at 100 kPa and 27°C with a volume flow...

A: Given data:

Q: R14-7. The collar of negligible size has a mass of 0.25 kg and is attached to a spring having an uns...

A: By using the Conservation of Energy of the system we get,  Here, initial kinetic energy is , initia...

Q: Determine the vertical displacement of joint D. AE is constant.

A: Force acting at CD is FCD=P Force acting in y directions FCAsinθ=-PFCA0.80.82+0.62=-PFCA=-P0.8=-1.25...

Q: Crank CB has a constant counter clockwise angular velocity of 2 rad/s in the position shown during a...

A: The angular velocities of AB and OA are as follows: ωAB=-6/7 rad/sωOA=-3/7 rad/s The acceleration eq...

Q: Air at 20℃, 100 kPa is compressed in a piston/cylinder without any heat transfer to apressure of 200...

A:

Q: As the truck shown begins to back up with a constant acceleration of 4 ft/s2, the outer section B of...

A:

Q: 3- A mass of 10 kg of saturated refrigerant-134a vapor is contained in a piston-cylinder device at 6...

A: Given data: Mass of saturated vapor refrigerant R-134a, m = 10 kg. The saturated vapor pressure in ...

Q: How many barrels of oil are contained in 100 kL ofoil? One barrel (petroleum) equals 42.0 gal.

A: 'x' barrels of oil are contained in 100 kL                                                  = 100 x ...

Q: The force required to expand the gas in a gas spring a distance x is given by F = Constant ________ ...

A: work=∫0.10.3Cxkdxwork=C1-kx1-k|0.30.1work=1.87 KJ

Q: Show that for isentropic flow of a perfect gas if a pitot- static probe measures Po, p, and Tg, the ...

A: Given: Isentropic flow of a perfect gas

Q: *7-72. A thin strip of rubber has an unstretched length of 375 mm. If it is stretched around a pipe ...

A: GivenUnstreched length=Lo=375 mmstreched length=Lf=π.dLf=π.125=392.69 mm

Q: What is the main difference between the safe-life and fail-safe design philosophies?

A:    Safe-Life Approach: No significant cracking should occur in the life of the airframe that could l...

Q: If the beam in Prob. 6–28 has a rectangular cross section with a width b and a height h, determine t...

A: Given Data: The load acting on the beam is 12 kN and 20 kN. The free-body diagram of the beam  can...

Q: How is the magnitude of the shear flow obtained?

A: A shear flow diagram is used to represent the flow of forces along the crossesction. It is used to m...

Q: 18-63. The system consists of 60-lb and 20-lb blocks A and B, respectively, and 5-lb pulleys C and D...

A: given:

Q: Can the shafts be subjected to cyclic or fatigue stress?

A: Yes the shafts can be subjected to cyclic or the fatigue stress

Q: The rotor of an electric motor has an angular velocity of 3600 rpm when the load and power are cut o...

A: Consider the flywheel as a rigid body and hence for a rigid body. Here,  is moment of all the for...

Q: (a) A beam is to be fitted in a box of length of 2 m, width of 15 cm and height of 20 cm. Choose a b...

A: Given: The dimension of the box are length of 2 m, width is 15 cm and height of 20 cm. 

Q: A loading causes the wires to elongate into the dashed shape. Explain how to determine the normal st...

A: It is known that length of the wire AB is lo and final length be l. lo=LAB             and          ...

Q: Fig.4 shows the coplanar system of forces acting on a flat plate. Determine the resultant and its lo...

A:

Q: Consider the fiberglass beam shown in (Figure 1). Suppose that wi = 2.2 kN/m and wz = 2.7 kN/m. Part...

A:

Q: A long-range ballistic trajectory between points A and B on the earth’s surface consists of a portio...

A: Given: Point C is 1500 km above. Radius of earth is 6370 km. The range of the trajectory is 6000 km

Q: A rectangular plate is supported by three cables as shown. Knowing that the tension in cable AC is 6...

A: Consider the free body diagram shown below for the given system.

Q: Young modulus of a material is ?50 ???. What is its rigidity modulus if Poisson’s ratio of the mater...

A: Given Data⇒ Young Modulus{K}=250 GPapoission ratio{μ}=0.3We need to determine rigidity modulus{G}

Q: For the frame and loading shown, determine the internal forces at the point indicated:Point J

A: Draw the free-body diagram of the frame.

Buckling of columns

The column is described as a vertical member of the structure that carries an axial compressive load, and buckling is a lateral deformation of the column under the application of load.