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two pipes in series have the following properties l1 frac14 200 m d1 frac14 400 mm k1 frac14 2 l2 frac14 650 m d2
a pump is located between two reaches of horizontal piping the conditions upstream of the pump are d1 frac14 75 mm and
1 calculate the speed of sound in a air at 0-c b nitrogen at 20-c c hydrogen at 10-c d air at 100-c and e oxygen at
1 two cars each with a mass of 6000 kg hit head on each traveling at 80 kmh estimate the increase in internal energy
1 air expands from a tank maintained at 18-c and 250 kpa to the atmosphere estimate its minimum temperature as it exits
1 calculate the weight of the column of air contained above a 1-m2 area of atmospheric air from sea level to the top of
1 a car with tires pressurized to 240 kpa 35 lbin2 leaves phoenix with the tire temperature at 50-c estimate the tire
1 two kilograms of 40-c air is contained in a 4-m3 volume calculate the pressure density specific volume and specific
1 the coefficient of thermal expansion at allows the expansion of a liquid to be determined using the equation dv-
1 a 2-m-long 4-cm-diameter shaft rotates inside an equally long 402-cm-diameter cylinder if sae-10w oil at 25-c fills
1 sae-30 oil at 30-c fills the gap between a 40-cm-diameter flat disk rotating 016 cm above a flat surfaceestimate the
water at 20-c flows in a 08-cm-diameter pipe with a velocity distribution of uethrthorn frac14 5eth1 2 r216 middot
a viscometer used to measure the viscosity of a liquid is composed of two 12-cm-long concentric cylinders with radii 4
1 the specific weight of a fluid is 11 200 nm3 calculate the mass contained in 2 m3a using the standard gravityb
there are three basic laws in our study of fluid mechanics the conservation of mass newtons second law and the first
energy around a sphere a sphere of radius r has a charge q distributed uniformly over its surface how large a
ball in a sphere we know that if a point charge q is located at radius a in the interior of a sphere with radius r and
sphere in a cylinder an infinite cylinder with uniform volume charge density rho has its axis lying along the z axis a
field from two sheets two infinite plane sheets of surface charge with densities 3sigma0 and -2sigma0 are located a
sphere and cones a consider a fixed hollow spherical shell with radius r and sur- face charge density sigma a
flux through a cube a a point charge q is located at the center of a cube of edge d what is the value of r
an equilateral triangle three positive charges a b and c of 3 middot 10-6 2 middot 10-6 and 2 middot 10-6 coulombs
n charges on a circle n point charges each with charge qn are evenly distributed around a circle of radius r
zero field four charges q -q q and -q are located at equally spaced inter- vals on the x axis their x values are -3a -a
potential energy in a one-dimensional crystal calculate the potential energy per ion for an infinite 1d ionic crystal