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A support crossbeam on a high speed train is made from a titanium rod that has a length of 0.650 when measured by an observer on the train. The beam is positioned such that the observer on the train measures an angle of 19 between the crossbeam and the floor of the train. At what speed would the train have to be traveling in order for an observer standing outside the train to measure the angle as 49 ? S indicates the reference frame of the observer standing outside the train and S' indicates the reference frame of the observer on the train. At what speed is the train moving when the angle between the crossbeam and the floor of the train is measured to be = 49 by an observer standing outside the train?
What are the major policy aspects of the Clean Water Act? What is the history and statutory basis for federal regulation of wetlands? What are the national permits? What are the origin and significance of the no net loss policy?
A floor is to be supported on hardwood timber joists that are spaced at 0.5m centres and span 5.0m. The joists support flooring 20mm thick and an applied live load of 2kN/m2 Design a typical joint 50mm wide
A jet of water of diameter 75mm moving with a velocity of 25m/s strikes a fixed plates in such a way that the angle between the jet and plate is 60 find the force exerted by the jet on the plate.
A soil borrow material in its natural state in the ground has a unit weight of 118pcf. Its natural water content is 7%. What is the dry unit weight of this material?
If 90% of the weight of this brown sugar is sucrose (C12H22O11), what mass of dissolved oxygen would have been required to degrade this mass of sucrose had some not been recovered from the barge prior to its dissolution and dispersion into the riv..
Assume to just using coal as an electric energy source. Take efficency as %50 for average power plant.If the carbondioxide level is 400 ppm by volume now, what will be the carbondioxide level 10 years later
Ask question ellipse construction via foci method
A 25-mm-diameter shaft .5 m long is pulled through a cylindrical bearing. The lubricant that fills the 0.3-mm gap between the shaft and bearing is an oil having a kinematic viscosity of 8.0 × 10-4 m2/s and a specific gravity of 0.91.
The bottom of a rectangular flume is 5 m above reference level. The depth of the water in the flume is 3 m. The average velocity is 1.7 m/s. What is the total hydraulic energy at the surface of the water and at the bottom of the flume.
The bar is prevented from rotating by the two pegsA and B fixed to the plate. Determine the acceleration a of the plate for which no force is exerted on the bar by either peg A or B.
Section 604 of the act lists the phase-out of production of substances that deplete the ozone layer. What is the last year that carbon tetrachloride can be produced
A field party is capable of making taping observations with a standard deviation of +,-0.003m per 30m taped length. What standard deviation would be expected in a distance of 120m taped by this party
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