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If a new piece of equipment costs $40,000.00 to purchase and it has a benfit of $500 per day. How many days per year does the equipment need to be used in order to be worth purchasing (breaking even)? The lifetime of the equipment is 10 years and assuming 10% annual interest?
n=10 i =10% initial cost =$40,000 benefit = $500 per day.
Suppose that the probabilities are , respectively , 0.6, 0.2, 0.1 and 0.1 that an income tax form will be filled out correctly , that it will contain an error favoring a taxpayer , that it will contain an error favoring the government
How much differential settlement is causing the additional stress of 4,000 psi in girder that is rigudly attached to columns at either end of its 50-ft span. The moment of inertia of the beam is 15,000 in4, and it is a 24-in.-deep beam section.
Susan's 12.0 baby brother Paul sits on a mat. Susan pulls the mat across the floor using a rope that is angled 30 degrees above the floor. The tension is a constant 31.0 and the coefficient of friction is 0.210. Use work and energy to find Paul's ..
Water at 60 degrees Fahreneit flows at 3 cfs through a 150-ft-long duct of 6 in X 9 in cross section. The pressure at the inlet end is 15 psig, and at the outlet, 20 ft higher than the inlet, it is 4 psig.
Draw HGL and EGL for the system. Assume the water depth in the lower reservoir is 5 m and the depth in upper reservoir is 10m. The pump is located close to the pipe entrance at the lower reservoir.
the wind reaches a speed of 27.8 m/s in a storm. calculate the force acting on a 1m x 2m window facing the storm. the window is in a high-rise building. the air density p= 1.2 kg/m3.
a driver in a vehicletraveling 40 mph shifts his eyes from right to left and focuses ona child about to dart across the street. estimate the distance infeet the vehicle travels as the driver's eye shift and fixate
Using the DeHoff method, compute the change in internal energy when 12 liters of argon gas at 273 K and 1 atm is compressed to 6 liters with the final pressure equals to 10 atm. Assume argon behaves ideally and CV = 3/2·R.
A constant head permeability test was conducted on a clean sand sample. The diameter and length of the test specimen were 10 cm and 12 cm respectively.
Determine the depth of a French drain (saturated depth) if the width is 3.0 feet, the effective permeability of the aggregate is 2000 ft/day, and the rate of discharge for 100 feet of trench is 1000 feet^3/day. The trench slope along the flow line is..
beam is 24 inch deep, the steel stirrup used is number 4,a 1 1/2 inch. concrete cover on both sides. Sketch how you will place the bars and calculate the location of the effective depth.
Determine the ASD reference and adjusted design values for the following members and loading conditions. All members are Select Structural Southern Pine and are fully braced to prevent lateral torsional buckling.
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