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Blogs Space exploration, comets, telescopes, the International Space Station, and astrophotography are popular blogging subjects. Enthusiasts ranging from NASA astronauts (blogs .nasa.gov) to backyard astronomers (tomsastroblog.com) share their discoveries and experiences on a variety of topics. Visit these blogs along with Jonathan's Space Report (planet4589.org/jsr.html), NASA Watch (nasawatch .com), Russian Space Web (russianspaceweb.com), Space Daily (spacedaily.com), and The Write Stuff (blogs.orlandosentinel.com/news_space_thewritestuff). What are three of the more recent topics? Which images of the moon, Mars, or stars from the Hubble Space Telescope are featured? What new discoveries have been made? When is the next launch at the Kennedy Space Center? Summarize the information you read and viewed.
a 0.12m3 rigid tank contains saturated refrigerant r134a at 800kpa. initially 25 percent of the volume is occupied by
Solve the preceding problem if the internal pressure is 3.75 MPa, the diameter is 19 m, the yield stress is 570 MPa, and the factor of safety is 3.0
Does the Bernoulli equation overpredict or underpredict the pressure drop in the tornado? Explain.
An angle glass/epoxy lamina is subjected to a shear stress txy = 0.4ksi in the global axes resulting in a shear strain ?xy = 468.3 µin./in.in the global axes. What is the angle of the ply? Use the propertiesof unidirectional glass/epoxy lamina fro..
B) Determine the minimum amount of work [kJ ] required to reach this end state. C) If more than the minimum work is actually used, where does this extra energy go? That is what becomes of the extra energy?
an electric moter drivers an axial fan assuming that the desired air velocity 65degree f existing the fan is 50mph and
An 8-kg plunger is released from rest in the position shown and is stopped by two nested springs; the constant of the outer spring is k1 = 4 kN/m and the constant of the inner spring is k2 = 12 kN/m. If the plunger is released from the height
Use the thin-airfoil theory to find the center of pressure (as a function of lift coefficient) and the moment coefficient about the aerodynamic center for the NACA 2412 and the NACA 4412?
an oil pump is powered by a 5kw electric motor. the pressure at the outlet and the inlet of the pump at full load is
1. Suggest six reasons why software dependability is important in most sociotechnical systems. 2. What are the most important dimensions of system dependability?
Determine the UA product of a counterflow heat exchanger required for the chilling process. Determine the length of the exchanger if the inner pipe has a 50-mm diameter and the overall heat trans- fer coefficient is U 1000 W/m2 · K.
Air flows though the mitered bend shown in Fig. P8.62 at a rate of 5.0 cfs. To help straighten the flow after the bend, a set of 0.25-in.-diameter drinking straws is placed in the pipe as shown. Estimate the extra pressure drop between points (1) ..
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