A styrofoam block of volume 0.50 cubic meters is submerged in a lake and tied to the bottom of the lake by a chain. What is the tension in the chain? 3.45e3 N 4.73e3 N 01.22e3 N 0.98e3 N

In a maximal flow problem, a.the flow out of a node is less than the flow into the node. b.the number of arcs entering a node is equal to the number of arcs exiting the node. c.the objective is to determine the maximum amount of flow that can enter and exit a network system in a given period of time. d.None of these choices is correct.

You have a 3-phase motor, M1, which drives a conveyor belt. The conveyor belt is operated with switches S1 (Start- forward), S2 (Start- back) and S0 (Stop). S1 and S2 are pressure switches with work contact (NO), SO is pressure switch with rest contact (NC). All switches have automatic return. The operator must operate the switches with one push to start the conveyor belt, it should not be necessary to hold the switches in for the conveyor belt to start. In order to change direction, the operator must first press stop, it will then take 5 seconds before it is possible to start the belt again. a. Draw the main flow diagram. Remember that the motor must have a direction of rotation reverser b. Draw control flow diagram

Blocked suction cylinder unloading is accomplished by

In a developing country, two alternatives are under consideration for delivering water from a mountainous area to an arid area in the country’s southern region. A coated heavy-gauge plastic pipeline can be installed,with pumps spaced appropriately along the pipeline. Alternatively, a canal can be built; however, it will have greater water loss than the pipeline, due to evaporation and poaching along the canal route. To compensate for the water loss, the canal will have a greater carrying capacity than the pipeline. It is estimated it will cost $125 million to install the pipeline. Major replacements are planned every 15 years at a cost of $10 million. Pumping and other annual operating and maintenance costs are estimated to be $5million. The canal will cost $200 million to construct; its annual operating and maintenance costs are anticipated to be $1 million. Major upgrades of the canal are anticipated every 10 years, at a cost of $5 million. Based on a five percent MARR and an…

Please correct answer and step by step solution

Answer the questions correctly. 5.

An Optical Spectrometer. You and your team are tasked with characterizing an equilateral, triangular prism to be used in an optical spectrometer. An optical spectrometer contains a dispersive element (in this case, the prism) that separates an incoming beam of light into its constituent wavelengths (or colors), and a photocell that measures the intensity of each color (wavelength) by measuring the intensity of the dispersed light as a function of angle. The index of refraction of the prism material you are using depends on the wavelength as n(A)=(1.111 x 104 nm¹) A (nm) + 1.609 An incident beam of white light impinges on the surface (see drawing) at an angle of 42.2 degrees below the normal. The prism is in air (n = 1.000). Normal Ꮎ Red (660 nm) Violet (410 nm) (a) Relative to the prism base (i.e., the horizontal in the drawing), at what angle does red light (A-660.0 nm) emerge on the opposite side? (b) Relative to the prism base (i.e., the horizontal in the drawing), at what angle…

Flotilla Beam, the owner of the Bay City Boatyard, recently had a brilliant idea. There is a shortage of boat slips in the harbor during the summer. Beam’s idea is to develop a system of “dry slips.” A dry slip is a large storage rack in a warehouse on which a boat is stored. When the boat owner requests, a forklift is used to remove the boat from the dry slip and place the boat in the water. The entire operation requires one hour when a launch reservation is made in advance. The boatyard already has a vacant warehouse, which could be used for this purpose. However, Beam’s idea will require the following capital investment by the boatyard. •   Storage racks: cost, $200,000; useful life, 18 years; MACRS class, 10-year property. •   Forklift: cost, $120,000; useful life, six years; MACRS class, 5-year property. Bay City Boatyard’s tax rate is 35 percent, and its after-tax hurdle rate is 14 percent. Instructions: For each of the boatyard’s proposed capital investments: 1.   Prepare a…

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