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Rope BCA passes through a pulley at point C and supports a crate at point A. Rope segment CD supports the pulley and is attached to an eye anchor embedded in a wall. Rope segment BC creates an angle of phi2 = 74.0^\circ with the floor and rope segment CD creates an angle theta with the horizontal. If both ropes BCA and CD can support a maximum tensile force T3 = 130 lb, what is the maximum weight W_max of the crate that the system can support? What is the angle theta required for equilibrium?
A light rail transit agency operates trains over a 25-km long single-track line. During the peak period, it operates five trains at 15-min headway. Train travels at an average speed of 50 km/hr.
The linkage shown is made up of two 3-kg rectangular members (0.4 m by 0.1 m), and is flying through the air. At the instant shown, the vertical member has angular velocity 4 rad/s, and the angled member has angular velocity 1 rad/s.
A full tank (3 m height) discharges water from an output pipe following the equation: W_out = A z^1/2. Calculate the time required to reduce the level to 1 m. Data: A _s = 1 m^2, A = 0.2777 kg (s m^1/2), density water = 1000 kg/m^3
The floor area of each floor in these buildings is 400 m^2. The buildings are separated by large lawns so that the (Exposure + Communication) factor = 1.2.
A simply supported steel beam over a 24-ft span carries a uniformly distributed dead load of 2 k/ft, including an allowance for the self-weight, and a live load of 3.5 k/ft. The steel is A992, Grade 50.
atmospheric air at 1.01 bar 30 c and 60 percent relative humidity flows over a set of cooling coils at an inlet flow rate of 1500 m^3/min the liquid which condeness is removed from the system at 17 c
Assuming the lagoons are well mixed and that there are no losses or gains of water in the lagoon other than the sewage input, what biodegradation reaction rate coefficient (in day^-1) must be achieved for a first order reaction that governs the de..
A regular hexagonal pyramid has an upper base edge of 16 ft. and a lower base edge of 28 ft. if the volume of the frustum is 18041 ft^3., find the lateral area of the frustum.
Compute the ratio of the nominal flexural strength of the beam to the maximum service load moment, and compare your findings to the ACI load factors and strength reduction factor.
Also calculate the deflection of the beam to check that it complies with the design limit of L/200. Only variable actions are required for deflection check.
A new sports car has a drag coefficient of .30 and a frontal area of 21 ft^2, and is traveling at 110 mi/h. How much power is required to overcome aerodynamic drag if p=.002378 slugs/ft^3?
You purchased a machine 5 years ago for $100,000 and now the machine costs $135,000. What is the average annual inflation rate for this machine
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