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a transmission tower is held my three guy wires attached to a pin at A and anchored by bolts b c and d if the tension in wire ab is 3.6 kn determine the vertical force p exerted by the tower on the
A cattle watering has a free surface with a size equal to 0.6 m x 0.3m, with the longer side being parallel to the prevailing wind. Wind at -23 C is blowing over the surface at 1 m/s.
An offshore drilling rig is being towed out to sea. What is the maximum distance away that the navigation lights can still be seen by an observer standing at the shoreline
A young engineer is asked to design a thermal protection barrierfor a sensitive electronic device that might be exposed toirradiation from a high-powered infared laser.
A steady-state, incompressible two-dimensional velocity field (u,v) is given by the following components in the xy-plane u = 0.2 + 1.3x + 0.85y v = -0.5 + 0.95x - 1.3y
A particle has an initial speed of 27m/s. If it experiences a deceleration of (-6t)m/s^2, where t is in seconds, determine its velocity after it has traveled 10 meters. How much time does this take
The floating platform is supported at each corner by a hollow sealed cylinder 1 m in diameter. The platform itself weights 30kN is air, and each cylinder weighs 1.0kN/meter of length.
The skateboard rider leaves the ramp at A with an initial Velocity Va at a 30 degree angle. If he strikes the ground at B, determine Va and the time of the flight. x=5.1m
A 200lb homogeneous gate of 10ft width and 5ft length is hinged at point A and held in place by 12ft long brace as the bottom of the brace is moved to the right the water level remains at the top o
Bearing stresses are very common in aerospace engineering. It occurs on the surface of contact between any two structural members. Bolts, pins, and rivets are classic examples of where bearing stres
A classroom that normally contains 40 people is to be air conditioned with window air conditioning units of 5 kW cooling capacity. A person at rest may be assumed to dissipate heat at a rate of abou
Draw a diagram of the room with all of the important parameters noted with symboles. Write a material balance to describe the rate of change in the amount of benzene in the air of the room starting
A 0.5 m diameter concrete pipe (5.0 cm wall thickness with rigid pipe walls) carries water 600 m before discharging it into another reservoir. The surface elevation of the downstream resevoir is 55
Base course aggregate has a target dry density 119.7 lb/cu ft in place. it will be laid down and compacted in a rectangular street repair area of 2000 ft x 48 ft x 6 in the aggregate in the stockpil
The lake has a surface area of 2 acres and a mean depth of 6 feet. The flow into the river is 200 cubic feet per second (cfs). The antibiotic is degraded naturally in the lake with a first-order rat
A 2,400 foot long, 2 foot diameter pipline conveys water from a hilltop reservoir to an industrial site. The pipe is made of ductile iron, has an outside diameter of of 2.25 feet, and has expansion
find the maximum allowable force P if the maximum allowable bearing stress on 6 pins holding 2plates together is σ all=10 MPa, and the maximum allowable shear stress is τ all =25 MPa
Determine the minimum required diameter for this machine member based on direct, compressive stress. The member is to be made of gray cast iron. Use a factor of safety of 6.0 against compression fai
It is commonly known that there are 16 ounces in 1 lb. Consider a 0.5lbf glass that weighs 1 lbf when filled with 8 ounces of liquid. Determine the liquid density in British gravitational units and
A certain gas has a molecular mass of 40. It is under a pressure of 2.5atm and a temperatature of 25 Degree Celsius. Determine its density and pressure in CGS absolute units.
Under this load the bar elastically deforms so that the gae length increases to 2.007 in. and the cross section decreases to 0.599x0.599 in. Determine the modulus of elasticity and the poisson's rat
Assuming the ball experiences a downward acceleration of a = 10-9v2 when in the water, determine the velocity of the ball when it strikes the bottom of the lake.
To provide a source of cooling on this hot Florida day, the piston is now pulled up until the air reaches a temperature of -100C. It can be assumed that the process is a polytropic one with.
A local rental yard said that they will supply you the loader for $50.00 per hour plus $4.15 sales tax not including any operating costs. You need to analyze what it would cost your company to purch
The evaporation rate from the surface of a 3650-acre lake is 100 acre-ft/day. Estimate the depth change in the lake in feet during a 1-year period if the net inflow to the lake is 25 cfs. Is the dep