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a rectangular blade weighing 002 lbf is kept in the surface of water sigma0073 nm solely by surface tension forces what
determine the minimum force p to prevent a 30kg rod ab from sliding on a wall the contact surface at b is smooth
the wood specimen is to be loaded in a testing machine until it fails in tension the ultimate normal strength of the
1it the mean annual runoff of a drainage basin of 10000 km2 is 140 m3s and the average annual precipitation is 105 cm
an aggregate blend is composed of 53 coarse aggregate by weight sp gr 2702 43 fine aggregate sp gr 2621 and 4 filler sp
the steel rails of a continuous straight railroad track are each 60 ft long and are laid with spaces between their ends
a hollow rectangular steel beam is 18 cm deep by 10 cm wide outside dimensions the walls are 2 cm in thickness from the
while designing a shock absorbing bumper for a 5-mg rail car the spring used for the bumper follows a nonlinear
1an electron is released from rest at a perpendicular distance of 99 cm from a line of charge on a very long
a wheel rolls to the right with an angular velocity of 2 rads while slowing down at a rate of 3 rads2 knowing the wheel
select an st shape to be used as a 20-ft long tension member to resist the following service loads dead load38kips live
use lrfd and select an american standard channel shapefor the following tensile loads dead load54 kips live load 80
an alloy has a yield strength of 41 ksi a tensile strength of 57 ksi and an elastic modulus of 16 x 106 psi a
to avoid the salinization of soil in a farming area parallel drainage canals are to be installed to maintain the water
a company produces two kinds of septic tanks type a and type b each type b tank takes twice as long to produce as a
a 15-lb ball that can slide on a horizontal frictionless surface is attached to a fixed point o by means of an elastic
1at the end of a 06-m diameter pipe the pressure is 270 knm2 the pipe is connected to a 03-m diameter nozzle if the
suppose a specialty steel company receives an order for 200 tons of steel containing at least 3 percent nickel and 2
in a water table aquifer bounded on the ends by rivers the hydraulic conductivity is 50 mday the hydraulic heads at x
an above ground pool needs to be drained the drained water will be used to irrigate a garden and some trees at the
if a large pool of water was rotating the same speed as an amusement ride how far would the surface of the water rise
an oil storage area abandoned 19 yrs ago had oil spilled on the ground and saturated the soil at a concentration of
you are asked to design a horizontal curve for a two-lane road the road has 12-ft lanes due to expansive excavation it
a permeability test was run on a cylindrical soil sample with a length of 175 mm and a diameter of 75 mm after 90
1a turbine expands to a pressure of 10 kpa and a quality of 094 determine the temperature t and the specific volume at