Calculate the extension of the bar (△L).
Q: Open with STAY 3 SECONDS BEHIND in good driving conditions at 50 km/h 50 one-thousand-one, one-thous...
A: Let us assume The velocity of the car = 50 kmph = 13.89 m/sTime behind = 3 s
Q: Determine the reactions at the pin supports A and C and the force in each member of the truss. Indic...
A: GIVEN DATA- A PLANE TRUSS GIVEN WE HAVE TO FIND REACTION FORCES AND FORCE IN ALL MEMBER
Q: how are the distances from the centroids Y calculated? the numbers do not add up
A: A centroid is the central point of a cross-section. It matches with the center of gravity. It is the...
Q: ngular- velocity vectors, use Cartesian coor ero, and b) determine Rj. = (U1, U2, U3) and 2 = (2,, 2...
A: Let U=U1,U2,U3 Ω= Ω1, Ω2, Ω3Here, U, Ω=Constant U1,U2,U3=Angular velocity vectors ...
Q: you have a 95 x 2mm steel nut being torqued to 125 ft Ibs, then turned 30 degrees tighter, what is o...
A:
Q: A uniform horizontal beam with a length of 12.00 m and a weight of 500 N is attached to a wall by a ...
A:
Q: 6. Determine the ratio a/b for which centroid will be located at point 'O' for a wire bent as shown ...
A:
Q: Q3 - Vertical forces are applied to the handle of the pipe wrenches. Determine the moment that these...
A: Given
Q: Define the position coordinates and write the equation of total length of the cable/cord Establish t...
A: - (a) XA is the position coordinate for A and XB is the position coordinate ...
Q: long does it take a plane, tr
A: Need to find Time
Q: A simple beam of span length 3.2 m carries auniform load of intensity 48 kN/m. The cross sectionof t...
A: Given data: The length of the simple beam is L = 3.2 m. The uniform load can be given as F = 48 kN/m...
Q: P pt 200 mm C B. 250 mm 300 mm 550 mm Act Given: Beam AB 75mmx100mm Beam CD 50mmx50mm P- BkN W = 10K...
A:
Q: 4. A pressure sensor is used to measure the level of a liquid in a tank. The weight density of the l...
A:
Q: A compressor is bring where the actual exit temperature is 650°C. Find the isentropic compressor eff...
A:
Q: The maximum gauge pressure in a hydraulic lift is 15 atm. What is the largest size vehicle (kg.) it ...
A:
Q: Q8a. The beam section below is solid and homogenous and has the following dimensions: b1 = 65 mm (to...
A:
Q: 1.22 The magnitudes of the two velocity vectors are v, - 5 mis and v, - 3 m/s. Determine their resul...
A: Here,V1→=V1cos50ο i+V1sin50οjV1→=5cos50ο i+5sin50οjSimilarly:V2→=V2cos40ο i+V1sin40οjV2→=3cos40ο ...
Q: Na Figura abaixo, determine a força em cada barra da treliça. Indique se cada barra está tracionada ...
A:
Q: being stretched it occupies the interval 0<A<lo. Also, before being stretched, for OSA< A0, the modu...
A: the boundery conditions are limA→A0- UL(A)=limA→A0+UR(A)UL and UR are the displacement and stress ...
Q: 1.37 Knowing that the resultant of the two forces is vertical, determine the angle a 25 Ib 12b Figur...
A: When more than one force is acting at a point or at a body and making the angles θ1,θ2,θ3,..... and ...
Q: Q9b. For the beam below, the point loads and distances are as follows: F1 = 11. 25 kN, F2 = 11.25 kN...
A: GIVEN DATA- A SIMPLY SUPPORTED BEAM GIVEN WE HAVE TO FIND REACTION FORCES
Q: How do you get the centroid of the inclined shape like in the picture? Like for F1 = PcgA1, you obvi...
A:
Q: 2. (a) Use the parallel axis theorem to calculate the inertia tensor for the same thin rectangular s...
A: (a) Draw a thin rectangular slab.
Q: 2.17 The trapdoor is held in the horizontal plane by two wires. Replace the forces in the wires with...
A: F1=240NF2=300NDB=1.2mBE=1.2mTo-Find:-The y-coordinate of point A
Q: 1. A Jet of water 50 mm diameter is discharging under a constant head of 70 meters. Find the force e...
A:
Q: -0.9 m Example:Determine the force P needed to lift the load. Also, determine the proper placement x...
A: Answer: (a) P = 2 kN (b) x = 0.33 m.
Q: Part A In order to prevent muscie contraction from misaligning bones during healing (which can cause...
A:
Q: 3. If block A weighs 200 N and block B weighs 300 N. Compute the acceleration of block B and the ten...
A:
Q: Refer to the figure below for the mechanism. If link 2 rotates at a speed of 60 revolutions per minu...
A:
Q: find the x coordinate of the centroid of the composite line shown
A:
Q: y 68 mm 17'mm 18'mm 27'mm mm х
A:
Q: Rankine cycle, dry saturated steam (x = 100%), enters the turbine at 8 MPa and saturated liquid (x =...
A:
Q: A flat foot step bearing 225 mm in diameter supports a load of 7500 N. If the co-efficient of fricti...
A: We know that a 225 mm diameter flat foot step bearing can handle a weight of 7500 N.Calculate the po...
Q: Consider the following system Find (i) Span (ii) Equivalent head of water at maximum level. (iii) Eq...
A: (i) Calculate the span of water level.
Q: Q1. Which one statement most accurately describes the relative strength and toughness for materials ...
A:
Q: 3. Helium enters an adiabatic 100-mm-diameter pipe steadily, with a velocity of 75 m/s. At the pipe ...
A: GIVEN DATA- D=100mm V=75m/s P1=200KPa T1=20'C P2=180KPa T2=18'C
Q: G. In the Study of rheological poperbes ot a Choco la te product, the Viscosity CH.) of the product ...
A: The relationship between shear stress and time has been provided. It is asked to find the linear rel...
Q: 2. calculate the work needed to lift a 20. kg sack of rice vertically at 6.5 m?
A: As per our guidelines we are supposed to solve only one question if multiple questions are asked . ...
Q: 1. A Jet of water 50 mm diameter is discharging under a constant head of 70 meters. Find the force e...
A:
Q: 2. Water flows in a pipe of 23-cm diameter with an average velocity of 0.73 m/s, the diameter of the...
A:
Q: th a total mass of 2000 kg has a rotor with an out of balance force equivalent to 0.2 kg at 0.5 m ra...
A: Transmissibility is nothing but the ratio of the force applied on the machine to the force transmitt...
Q: 6) A steel rod with a cross-sectional area of 0.25 in? is stretched between two fixed points. The te...
A:
Q: Water flows to a pump at 100 psig and the pump supplies 100 feet of head pressure. If piping losses ...
A: Pressure inlet to pump, P1=100 psig=100*144 lb/ft2Pump head, Hp=100 ft
Q: Q9c. For the beam below, the point loads and distances are as follows: F1 11.25 kN, F2 11.25 kN and ...
A:
Q: As shown in the figure, to dissipate heat from an electrical appliance, thin plates of metal with a ...
A: Given data Thermal conductivity =k = 10 Btu/h ft FTbase = 85 °FTf = 65 °Fh = 1 Btu/h.ft2.FL = 10 in...
Q: Find the pressure on a scuba diver when it reads 30 meter below the surface of the sea. (Density of ...
A:
Q: The work from one state to another is always P (V2 - V1). -
A: It is false. Ans: B
Q: 3. Thermal conductivity of a substance is measured as k = KTIT,. Find an average value for thermal c...
A: Givenk=koTTotemperature range T1 to T2
Q: B- Use the graphical method to find the magnitude and direction of the resultant of these forces. 60...
A:
A 2.25 m long solid bar (Lo) with a 32 mm diameter is placed under tension by a load (F) of 250 kN. The bar is solid and made of a homogeneous material with a Young’s Modulus E = 250 GPa. Calculate the extension of the bar (△L). Give your answer in millimeters (mm) to two decimal places.
Step by step
Solved in 3 steps with 2 images
- A rubber ball (sec figure) is inflated to a pressure of 65 kPa. At that pressure, the diameter of the ball is 240 mm and the wall thickness is 1.25 mm. The rubber has a modulus of elasticity E = 3,7 MPa and Poisson's ratio v = 0.48. (a) Determine the maximum stress and strain in the ball, (b) If the strain must be limited to 0.425, Find the minimum required wall thickness of the ball.A wine of length L = 4 ft and diameter d = 0.125 in. is stretched by tensile forces P = 600 lb. The wire is made of a copper alloy having a stress-strain relationship that may be described mathematically by =18,0001+30000.03(=ksi) in which is nondimensional and has units of kips per square inch (ksi). (a) Construct a stress-strain diagram for the material. (bj Determine the elongation, of the wire due to the Forces P. (c) IF the forces are removed, what is the permanent set of the bar? (d) If the forces are applied again, what is the proportional limit?A pressurized cylindrical tank with flat ends is loaded by torques T and tensile forces P (sec figure), The tank has a radius of r = 125 mm and wall thickness t = 6.5 mm. The internal pressure p = 7.25 MPa and the torque T = 850 N m. (a) What is the maximum permissible value of the forces P if the allowable tensile stress in the wall of the cylinder is 160 MPa? (b) If forces P = 400 kN, what is the maximum acceptable internal pressure in the tank?
- A steel cable with a nominal diameter of 25 mm (see Table 2-1) is used in a construction yard to lift a bridge section weighing 38 kN. as shown in the figure. The cable has an effective modulus of elasticity E = 140 GPa. (a) If the cable is 14 m long, how much will it stretch when the load is picked up? (b) If the cable is rated for a maximum load of 70 kN, that is the factor of safety with respect to failure of the cable?An aluminum bar has length L = 6 ft and diameter d = 1.375 in. The stress-strain curse for the aluminum is shown in Fig. 1.34. The initial straight, line part of the curve has a slope (modulus of elasticity) of 10.6 × 106 psi. The bar is loaded by tensile forces P = 44.6 k and then unloaded. (a) That is the permanent set of the bar? (b) If the bar is reloaded. what is the proportional limit? hint: Use the concepts illustrated in Figs. l.39b and 1.40.(a) Solve part (a) of the preceding problem if the pressure is 8.5 psi, the diameter is 10 in., the wall thickness is 0,05 in., the modulus of elasticity is 200 psi, and Poisson's ratio is 0.48. (b) If the strain must be limited to 1.01, find the maximum acceptable inflation pressure
- A hollow, circular, cast-iron pipe (Ec =12,000 ksi) supports a brass rod (Ec= 14,000 ksi} and weight W — 2 kips, as shown. The outside diameter of the pipe is dc= 6 in. (a) If the allowable compressive stress in the pipe is S00O psi and the allowable shortening of the pipe is 0.02 in., what is the minimum required wall thickness trmm? (Include the weights of the rod and steel cap in your calculations.) (b) What is the elongation of the brass rod Srdue to both load Wand its own weight? (c) What is the minimum required clearance h?A copper cylinder 150mm outside diameter has walls 25mm thick. End plates are stayed by a 25mm diameter bar of steel which passes through the cylinder and is just tight at -11°C. Estimate the stress in cylinder and stay when steam at atmospheric atmosphere (100°C) is admitted. Assume the end plates do not deform. Use the following values: ac = 17 x 106/°C Ec = 117 GPa as = 12 x 106/0c Es = 200 GPaCalculate the resulting stress in an aluminum wire, 4-m long and 2.6 mm in diameter, if a 12.5 -kg fixture is hung from the wire? Young's modulus for aluminum is 7.0 × 10^10 N/m^2. Express the answer in Pa and as a whole number.
- A central horizontal section of a hook is a symmetrical trapezium of inner width=67.5mm and of outer width =22.5mm. The depth of the section is 90mm. The hookcarries a load of 37.5kN. The load line passes through the centre of curvature. Theradius of the hook is 52.5mm. Determine the maximum compressive and tensilestresses in the section of the hook.A member is formed by connecting two steel bars shown below. Assuming that the bars are prevented from buckling sideways, calculate the magnitude force "P" that will cause the total length of the member to decrease 0.89 mm the values of elastic modulus for steel is 209 MPa. Take H1 = 7 cm, H2 = 11 cm, top bar (R) is 3 x 3 cm and bottom bar (Q) is 6 x 6 cm. Also, determine the stress-induced in each section of the bar. i) Magnitude Force, P in(N) = ii) Stress-induced in the top bar in(N/mm^2) = iii) Stress-induced in the bottom bar in(N/mm^2) =A member is formed by connecting two steel bars shown below. Assuming that the bars are prevented from buckling sideways, calculate the magnitude force "P" that will cause the total length of the member to decrease 0.36 mm the values of elastic modulus for steel is 223 MPa. Take H1 = 5 cm, H2 = 11 cm, top bar (R) is 3 x 3 cm and bottom bar (Q) is 7 x 7 cm. Also, determine the stress-induced in each section of the bar. i) Magnitude Force, P = ii) Stress-induced in the top bar = iii) Stress-induced in the bottom bar =