Mechanics
Q: Q) A simplified model as shown in figure below of a planar robotic arm. You may assume that each seg...
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Q: 3.9 The homogeneous 18-kg pulley is attached to the bar ABC with a pin at B. The mass of the bar is ...
A: 3.9 given that Mass of pulley = 18 kg Tension = 600 N
Q: ighten a flange bolt which holds the wheel to the e. Determine the moment M produced by this e about...
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Q: 1] What is the resultant moment of the five forces acting on the rod about point B?
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Q: An airplane makes a complete half circle of 75 meters radius, towards left, when flying at 350 km/h....
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Q: HW: Determine the force in each member of the truss shown in Fig. below. Indicate whether the member...
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Q: 5/8 Determine the x- and y-coordinates of the centroid of the trapezoidal area. y a Problem 5/8
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Q: Combustion of a fuel sample in a bomb calorimeter increases the temperature of the entire system by ...
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Q: Q3: As Engineer, you have been asked to calculate only the forces in the members (AB, AC, BC, and CE...
A: The free body diagram of the truss is given below,
Q: 6. Oil ( µ = 0.478 Pa.s and v= 5.3 *10* m/s ) flows downward in a pipe which is (3 cm ) in diameter ...
A: Assumption 1) Flow is laminar 2) Fully developed flow 3) Pressure gradient is constant
Q: The lever AB shown in the figure is attached to the horizontal axis BC that passes through the beari...
A: Given: The length of lever, l = 325 mm The Force acting at A, P = 150 N The torsion of spring, K = 1...
Q: Vector A represents 5.0m of displacement east. If vector B represents 10m of displacement north, fin...
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Q: Q2/When the pump in Fig. below draws 220 m/h of water at 20°C from the reservoir, the total friction...
A: Given: Discharge Q=220m3/hr Density of water at 20°C=1000kg/m3 Suction head hs=6+2=8m Frictional hea...
Q: Find the Steady-state and the total response of the system under
A: Given: K=4000 N/m W= 100 N C= 40 Ns/m F=200sin10t x=10 cm =0.1 m at t=0 x˙o=0 To determine: Steady s...
Q: 5/13 Determine the coordinates of the centroid of the shaded area. y x = ky? b
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Q: Problem 1: Gnome Ride - This from a Previous Exam y A Gnome of given mass M goes on the Gnome Ride a...
A: Given, Mass of Gnome = M Position of Gnome = y = C cos(ωt) Part (a): Velocity at time t can be giv...
Q: 01: A piston-cylinder system contains 0.25 m3 of water at 2.1 MPa and 100°C. It is heated at constan...
A: Given data A piston-cylinder system = 0.25 m of water at 2.1 MPa and 100°C. It is heated at consta...
Q: Q1) Determine the magnitude and direction of F; so that If the resultant of the three forces act on ...
A: Draw a diagram showing the resolved components of forces along the x and y directions. Here, α is t...
Q: Carbon steel balls (p=7833 kg/m³, k=54 W/m.°C, Cp=0.465 kJ/kg.K ) 10 mm in diameter are annealed by ...
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Q: What are some of the operations required of sand castings after removal from the mold
A: Sand casting is a process where mold is made of sand.
Q: Fig 3 5m 3m 3m 5000 N 5000 N Q3: As Engineer, you have been asked to calculate only the forces in th...
A: Solution: To calculate support reactions at A and H, Consider the truss in static equilibrium,then ∑...
Q: The crate has a weight of 550 lb. Determine the force in each supporting cable.
A: Given data Weight = 550 lb
Q: A block of mass m, on a rough, horizontal surface is connected to a ball of mass m, by a lightweight...
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Q: What is the relationship between the ?distance from neutral axis and stress
A: The stress, s, in the element a distance, y, from the neutral axis i s proportional to the distan...
Q: F2 F1 01.4 An eyebolt is subjected to four forces (FI=12KN, F2-8kN, F3-18kN, F4-4kN) that act under ...
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Q: Q1// A hollow shaft of 10mm inside diameter and 5mm thick and 2m long extends by 0.5 cm under a tens...
A: Write the given values along with the suitable variables.
Q: Q2/When the pump in Fig. below draws 220 m³/h of water at 20°C from the reservoir, the total frictio...
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Q: If block A has a velocity of 0.6 m/s to the right, determine the velocity of cylinder B.
A: Given Data⇒ Velocity of block AVA=0.6 msProblem statement⇒Problem says determine the velocity of cyl...
Q: Q1: Aluminum plate shown: Sut 640 Mpa, reliability is 90%, factor of safety is 2, the size factor is...
A: Given dataUltimate tensile strength Sut = 640MPaReliablity R = 90%Load P = ±50kNFactor of safety N =...
Q: 5/8 Determine the x- and y-coordinates of the centroid of the trapezoidal area. a b h
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Q: Exercise 2.24: Express each of the three forces acting on the bracket in Cartesian vector form with ...
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Q: 2 cm 2 cm LI 10 cm 2 cm 10 cm
A: The given beam is as shown below, Calculate the centroid and moment of inertia of the beam, Area of...
Q: Draw the third projection 2-Draw the isometric projection
A: Given figure To draw : The third angle projection To draw : theisometric view
Q: The rate of change of shear force with respect to the distance is called as Bending Moment. Select...
A: The rate of change of the bending moment with respect to the distance is called shear force.
Q: A race car increases its speed from 80 mi/h to 160 mi/h in a distance of 100m. Find the magnitude of...
A: Given data: Initial speed (u) = 80 mi/h Final speed (v) = 160 mi/h Distance covered (d) = 100 m Need...
Q: Q1) Steam is supplied to a turbine at 30 bar and 350°C. The turbine exhaust pressure is 0.08 bar. Th...
A: Given Pressure=30 bar Temperature= 350°C
Q: The section modulus for the beam of hollow circular cross section of outer and inner diameters as 70...
A: Write the formula for the section modulus for the hollow circular cross-section. z=πD4-d432D Here, z...
Q: d the gyroscopic couple on the
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Q: F2-1. Determine the magnitude of the resultant force acting on the screw eye and its direction measu...
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Q: Calculation of moment with respect to point A.
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Q: 1. A beam 3 m long weighing 400 N is suspended in a horizontal position by two vertical strings, eac...
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Q: Q2:A constant pressure heat addition air standard cycle af a compression ratio of (17.0) .Heat is ad...
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Q: A bar of dimension 120 mm x 50 mm x 40 mm, is subjected to an axial pull of 50 kN. The measured exte...
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Q: A system consists of a turbine and heat exchanger are connected in series. The working fluid is ente...
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Q: A bronze alloy specimen having a diameter of 12.8 mm and a gage length of 50 mm was tested to fractu...
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Q: hber of feet of wire have been used e length of the remaining copper and a resistance of 0.5. FIG. 3...
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Q: Which has higher young’s modules and why? 1)rubber and glass which has higher and why? 2)copper and...
A: The coefficient of proportionality is Young's modulus. The higher the modulus, the more stress is...
Q: 3 - If lim f(x) = 3.5 and lim,-2+ f(x) = 6, 5 , the function has a double sided x-2 limit or one sid...
A: When RHL EXISTS and LHL also exists BUT BOTH ARE NOT EQUAL
Q: 24. Consider 10 solar collectors, of dimension 2m x Im, and an efficiency of 75 percent, used to hea...
A: Given data . Number of solar collectors = 10 solar collectors dimension = 2m x Im an efficiency = 7...
Q: 21. By using Cosine's and Sine's laws, determine the resultant ( R) of the two orces shown in the fi...
A: Solution Calculate the horizontal force H = 1000 cos 45 - 900 cos 65 = 326 N
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- The horizontal force due to water acting on the bolt (Fh): Fh=ρ×A1×V1×V1--V2 Fh=1000×π4×0.0752×1.254×1.254+11.286( Fh)=69.472 This is the only part I did not understand how to get. Can you please explain more? I arrived with this equation, -P1A1 - P2A2 (cancelled since atmos. Pres.) +Fh = rho A1v1 (v2-v1) Why did P1A1 disappear in your solution? How did you come up with (v1 - - v2) ? What is the control volume? Why did you not do a summation of forces is equal to change in momentum but instead go immediately to getting the horizontal force acting on the bolt?ᴀn new material(any material) ꜱᴛʀᴜᴛ, 2 ᴍᴇᴛᴇʀꜱ ʟᴏɴɢ ʜᴀꜱ ᴀ ʀᴇᴄᴛᴀɴɢᴜʟᴀʀ ᴄʀᴏꜱꜱ ꜱᴇᴄᴛɪᴏɴ ᴀʀᴇᴀ 20 ᴍᴍ x ꜱᴏ ʀᴀɴᴛ. ᴀ ʙolᴛ ᴛʜʀᴏᴜɢʜ ᴇᴀᴄʜ ᴇɴᴅ ꜱᴇᴄᴜʀᴇꜱ ᴛʜᴇ ꜱᴛʀᴜᴛ ꜱᴏ ᴛʜᴀᴛ ɪᴛ ᴀᴄᴛꜱ ᴀꜱ ᴀ ʜɪɴɢᴇᴅ ᴄᴏʟᴜᴍɴ ᴀʙᴏᴜᴛ ᴀɴ ᴀxɪꜱ ᴘᴀʀᴀʟʟᴇʟ ᴛᴏ 20 ᴍᴍ ᴅɪᴍᴇɴꜱɪᴏɴ. ᴅᴇᴛᴇʀᴍɪɴᴇ ᴛʜᴇ ꜱᴀꜰᴇ ᴄᴇɴᴛʀᴀʟ ʟᴏᴀᴅɪɴɢ ᴜꜱɪɴɢ ꜰᴀᴄᴛᴏʀ ᴏꜰ ꜱᴀꜰᴇᴛʏ ᴏꜰ 2.5. ᴜꜱᴇ ᴇ = 80 ɢᴘᴀ & ꜱʏ = 60 ᴋꜱɪ ꜰᴏʀ ᴀʟᴜᴍɪɴᴜᴍ. ᴛʀʏ ɪꜰ ᴛʜᴇ ᴀxɪꜱ ᴏꜰ ᴛʜᴇ ʜɪɴɢᴇᴅ ᴄᴏʟᴜᴍɴ ɪɴ ᴘᴇʀᴘᴇɴᴅɪᴄᴜʟᴀʀ ᴛᴏ 20 ᴍᴍLemar Supermarket sells about 200 000 kilos of milk annually. The milk ispurchased for 4 MU/kg. Holding costs are 1.40 MU/kg/yr. Each order costs 35 MU. If theshelf life of the milk is only 5 days, how many kilos should be ordered at a time. Please mention formulas and do it in detail so I can understand.
- Engineering economics Investing in Electrical Efficiency Two pumps capable of delivering 100 hp to an agricultural application are being evaluated in a present economy study. The selected pump will only be utilized for one year, and it will have no market value at the end of the year. Pertinent data are summarized as follows: ABC Pump XYZ PumpPurchase price $2,900 $6,200Maintenance cost $170 $510Efficiency 80% 90% If electric power costs $0.10 per kWh and the pump will be operated 4,000 hours per year, which pump should be chosen? Recall that 1 hp = 0.746 kW. Choose XYZ because it provides least cost.A physics lab consists of a large ball attached to a wire. Students hold on to one end of the wire, then whirl the ball around in circles and count the number of rotations per second. One group finds these numbers: ball mass= 320 gram, wire length= 1.3m, number of rotations/sec=2.5. The wire is made of steel with a diameter of 1mm and a Young's modulus of 20x10^10 N/m^2.How much does the wire stretch due to the tension on it? Should the students correct their data for the wire stretching?1. Consider a right pyramid whose base is an equilateral triangle of side 4cm each, each slant edge is 5 cm long. what will be the volume of the pyramid? a) (4√61)/(3) cm^3 b)(4√59)/(3) cm^3 c)(4√71)/(3) cm^3 d)(4√8)/(3) cm^3 2. Find the value of k such that lines 3kx+8y=5 and 6y-4kx=-1 are perpendicular and 3kx+8y=5 has a positive slope a) 0 b) -2 c) 4 d) 2 3. what is the equation of the line passing through the origin and perpendicular to the line 2x-5y+6=0 a) 2y-5x+0 b) 2y+5x=0 c) 5y+2x=0 d) 5y-2x=0
- . What force would be exerted against a seawall if a 1:36 model 0.914 m long experienced a wave force of 120 N?4. A surface vessel 156A simply supported beam is subjected to two forces P and Q. Value of force P is 20 N and value of force Q is 40 N.If value of support force Ra is 30 N , then value of support force Rb is calculated as : O a . 70 N O b.30N O C60N O d . SONAeronautical engineers help design airplanes. Why do you think it’s important for aeronautical engineers to be able to determine the center of gravity for an airplane?
- During a bicep curl on a bicep curl machine, I'm curling a weight stack of 100 pounds (single arm...I'm jacked like that). At this very moment, the weight stack has a moment arm of 0.12m, my elbow has an angle of 63deg, my muscle force vector has an angle of 23deg, and it attaches 3cm below my elbow joint on my radius. How much force must my bicep create right at this moment to hold the weight stack in place?1. A non-uniform is 4.5m long and weighs 640N. It is balance when a 270N weight is hung 0.800m from the light end of the bar and the bar is pivoted at its center. Where is the center of gravity of the bar? 2.Two workers carry a non-uniform beam weighing 730N. The beam is 2.6m long and its center of gravity is 1.1 m from one end. If the workers hold the beam at its end, how much does each worker lift?1. Energy consumption in a country from 2001 to 2011 increased from 1041.3 million to 1526.1 million BOE (barrels of oil equivalent). If the high calorific value (HHV) of the oil is 141,000 kJ/gallon what is the increase in energy consumption over 10 years in Joule units. What is the rate of energy consumption per year? 2. Based on data on the rate of energy consumption per year from question no. 1, if the growth rate energy 2.5% per year, calculate the doubling time (td) and what is the approximate rate of energy growth in 2021.