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Calculating the mass flow rate of the water discharged from a pipe. A pipe with a 2m diameter carries water having a velocity of 4 m/s. What is the mass flow rate of the water in kg/s at following temperatures?
a. 0°Cb. 30°C
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On a certain day the barometric pressure at sea level is 30.1 in. Hg, and the temperature is 70°F. The pressure gage in an airplane in flight indicates a pressure of 10.6 psia, and the temperature gage shows the air temp ...
Figure 3.50 shows the tangent line approximation to f(x) near x = a. (a) Find a, f(a), f'(a). (b) Estimate f(2.1) and f(1.98). Are these under- or overestimates? Which estimate would you expect to be more accurate and wh ...
Two blocks having masses m1 and m2 are connected to each other by a light cord that passes over two identical frictionless pulleys, each having a moment of inertia I and radius R, as shown in the figure. The arrows show ...
An elite Tour de France cycler can maintain an output power of 450 W during a sustained climb. At this output power, how long would it take an 85 kg cycler (including the mass of the bike) to climb the 1100 meter high Al ...
A solenoid of inductance 50mH and resistance 10 ohms is connected to a battery 6v.FInd the time elapsed before the current acquires half of its steady state value.
(a) Use a computer algebra system to find and simplify the derivative of the given function. (b) Without a computer algebra system, use differentiation rules to calculate the derivative. Make sure that the answer simplif ...
Infrared light with a wavelength of 1870nm is emitted from hydrogen. What are the quantum numbers of the two states involved in the transition that emits light?
Two circular discs, both with radius a, are parallel with mutual distance d, such that their centers are situated on a line orthogonal to the discs. The volume between the discs is filled with oil with viscosity η. One d ...
1. Compute the thermal equilibrium constant K of the electron-hole pair generation-recombination reaction in silicon at 300K, 600K and 900K. 2. A test charge Is generated Inside a pure Si at T=300K. How long does it take ...
If a circuit requires a capacitor to give good coupling at 200Hz and the resistance the capacitor is connected to is 3Kohms, what value capacitor is needed?
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