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The small sphere of mass (m) is suspended initially at rest by the two wires. If one wire is suddenly cut, determine the ratio (k) of the tension in the remaining wire immediately after the other wi
determine the components of the 800 lb force f along the oblique axes a and b. also, determine the projections of f onto the a and b axes
At a wastewater treatment plant, FeCl3 (s) is added to remove excess phosphate from the effluent. Assume the following reactions occur: FeCl3(s) <------>Fe3+ + 3Cl- Fe3+ + PO4 (3-) <------&
Given that the seperation distance between the charges is 5m, q1 = -3q2, find the position where the net electric field is zero. Do not use infinity.
A tangent section of highway has a -1.0% grade and ends at station 0+1450and elevation 25m. It must be connected to another section of highway that has a -1% grade and that begins at station 1+345 a
A tank contains 0.05 m^3 of nitrogen gas at -21 C and 10 MPa. Determine the mass of nitrogen, in kg, using: a) the ideal gas model b) data from the compressibility chart Comment on the applicability
The compound interest formula is F=P(1+i)n where F is the total amount due, P is the initial cost or amount of money, i is the interest rate, and n is the number of periods interest is computed. 1.A
The aquifer characteristics are: Ambient temperature=8 oC Hydraulic conductivity = 123 ft/day Hydraulic gradient = 0.00091 ft/ft Effective porosity = 0.31 Total organic carbon = 198 mg/kg Bulk densi
1.How long is the irrigation boom (in feet) from the center pivot to its farthest extent. 2.If the irrigation boom makes 4 full revolutions in a day, how many miles does the end of the boom travel in
A PVC pipe with a diameter of 30 inches will carry a flow of 20 cfs. the bottom slope is 0.005 and the roughness coefficient is 0.015. determine the normal depth, critical depth, velocity and the fr
determine critical depth in a circular pipe of 36 inches diameter and roughness coefficient of 0.015 The flow rate is 15 cfs , So = 0.002
A cable is made of two strands of different materials, A and B, and cross sections as follows: For material A, K = 60, 000 psi, n = 0.6, Ao = 0.6 in2 For material B, K = 30, 000 psi, n = 0.5, Ao = 0
what is the nominal yearly interest rate on a loan with quarterly interest of 3% with quarterly compounding
a section of highway has the following flow- density relationship: q= 50k - 0.156k^2 what is the capacity of the highway section, the speed at capacity, and the density when the highway is at one-qu
a section of highway has a speed flow relationship of the form q= au^2 + bu it is known that at capacity ( which is 3100 veh/h) the space-menu speed of traffic is 28 mi/h. determine the speed when t
on a specific westbound section of highway studies show that the speed-density relationship is u= uf [1-(k/kf)^3.5] It is known that the capacity is 4200 veh/h and the jam density is 210 veh/mi.
how much money today is equivalent to lump sum of $100,000 in 20 years with interest rate of 6% per year compounded (a)monthly, (b)quarterly, (c)semiannually
assume you are an observer standing at a point on the track for a period of 30 minutes and are recording the instantaneous speed of each vehicle as it crosses your point. what is the time-mean speed
you measure the average headway and average spacing of passing vehicles as 3.2 seconds and 165 ft, repsectively. calculate the flow, average speed, and density of the traffic stream in this lane.
Our laboratory plans to use one, 10-liter tank of refrigerant 134a every week. So off you go to check the cost of fill-ups at the two possible suppliers. At Chem Mart, the filled tank is returned to
A thin-walled pipe, of diameter 4 in., is held stationary in a river flowing at 6 ft/s parallel to its axis. The pipe contains a sharp-edged orifice, of diameter 3 in., with a contraction coefficien
The volume of water in a reservoir is often expressed using the unit of acre-foot. A volume of 1 acre-foot is the amount of water covering an area of 1 acre to a depth of 1 foot. Lake Mead is the la
What return period must an engineer use in the design of a bridge opening for 50% risk that flooding will occur at least once in two successive years
Water is pumped at a rate of 1.57 cfs from one large open tank into another through a 6 in diameter cast iron pipe 400 ft long. The water level in the second tank is 160 ft above the level of the fi
The annual rainfall in basin follows a normal distribution with the mean value of 80 cm and standard deviation of 10 cm. What is the probability that annual rainfall exceeds 100 cm in any year