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A 250-kg crate B is suspendedform a cable attached to a 20-kg trolley A which rides on aninclined I-beam as shown.Knowing that at the instant shownthe trolley has an acceleration of0.4 m/s2 up to the right,determine
(a) the acceleration of B relative to A,
(b) the tension incable CD.
A stirling cycle engine uses 1 kg of nitrogen (N_2, c_v= 0.743 kJ/KG*K, c_p = 1.039 kJ/kg*K) as the working fluid. The nitrogen begins its isothermal expansion at 1000K, 500 kPa. During the expansion process the volume of nitrogen increases by a fact..
a plane wall with surface temperature 350c is attached with straight rectangular fins k 235 wm k. the fins are exposed
a sample of saturated clay from a consolidometer test has a total weight of 3.36 ib and a dry weight of 2.32 ib the
Consider automating a non-trivial everyday process, such as making a cup of tea or automatically turning on the windscreen wipers in a car when it rains.
Question 1: Find an expression for {density of water at 4°C} if the following are known: {acceleration due to gravity, specific gravity, fluid volume, weight} Question 2: Find the pressure at point B if the following are known:
A platinum wire is used as a resistance thermometer. The wire resistance was found to be 10 ohm and 16 ohm at ice point and steam point respectively, and 30 ohm at sulphur boiling point of 444.6 C. Find the resistance of the wire at 500°C, if the ..
Consider a slab of solid material of area A between two large parallel plates a distance Y apart. Give the initial condition and the progression of events that proceeds with time as the lower plate is suddenly brought to a slightly higher temperature..
A steel plane of finite dimension and thickness of 13 mm has the initial (uniform) temperature of 35 C. put the plane into the solution in all sudden and the wall temperature is increased to 146 C spontaneously. The thermo diffusivity of the plane, i..
In a refrigerator 1 kW is removed from the -10 degree C cold space and 1.3 kW is moved into the 30 degree C warm space. Find the exergy fluxes including direction associated with the two heat transfers.
Explain why the environment in which a computer-based system is installed may have unanticipated effects on the system that lead to system failure. Illustrate your answer with a different example from that used in this chapter.
Determine the maximum height h of the mass m for which the inverted pendulum will be stable in the vertical position shown. Each of the springs has a stiffness k, and they have equal precompressions in this position. Neglect the mass of the remain..
the rigid tank in the figure below has a volume of 60 l and initially contains a two-phase liquid vapor mixture of h20
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