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Water flows through a pipe at an average temperature of T=70°C. The inner and outer radii of the pipe are r1=6cm and r2=6.5cm, respectively. The outer surface of the pipe is wrapped with a thin electric heater that that maintain consumes 300W per m length of the pipe. The exposed surface of the heater is heavily insulated so that the entire heat generated in the heater is transferred to the pipe. Heat is transferred from the inner surface of the pipe to the water by convection with a heat transfer coefficient of h=85W/m2·K.
A small steel ball bearing with a mass of 13 g is on a short compressed spring. When aimed vertically and suddenly released, the spring sends the bearing to a height of 1.35 m. Calculate the speed at which the ball leaves the spring.
Use potential flow theory to determine the lift coefficient of a spinning baseball in terms of the forward velocity (V ) and spin RPM.
a stone is dropped into a lake causing circular waves whos radii increase at a contant rate of .5 m/s at what rate is the circumference of a wave changing when its radius is 4 meters?
Specifies that just the data points be marked with a circle. Showing the general trend of safety as a function of dia, with the actual data points marked by a circle. Is that explanation of the plot command still a little opaque?
Treat the locomotive as a particle and assume that the railroad tracks are rectilinear and horizontal.
Assume a diffusion coefficient of 1 × 10-8 m2/s, that the concentrations at the high- and low-pressure sides of the plate are 2.4 and 0.6 kg of hydrogen per cubic meter of palladium, and that steady-state conditions have been attained.
Calcium oxide (CaO) is formed by decomposing limestone (pure CaCO3). In one kiln the reaction goes to 70% completion. What is the composition (by mass) of the solid product (CaO) withdrawn from the kiln? (Hint: there will be two separate product s..
A horizontal cantilever of length L supports a load W, uniformly distributed along its length. the cantilever is proped to the level of the fixed end at a distance 3/4 L from that end. Determine the load on the prop.
An unsuited free diver can work in a pressure of up to 490KN/m^2 and a suited diver in pressure of up to 1815 KN/m^2. Calculate the maximum depths at which they might work in sea-water which has a specific gravity of 1.03.
a Steel ally to be used for a spring application must have a modulus of resilience of at least 2.07 MPa. What must be the metal's minimum yield strength.
Determine the peak runoff from 500 ft of pavement(32ft wide) that drains toward a gutter(for 10 years freq. storm), the pavement slope is .0005, n=.016 and c=.9
Derive an expression for the bounding energy Eo in terms of the equilibrium interionic separation ro and the constants D, and p using the following procedure
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