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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.
1. an array of solar panels on a residential roof produces at full sun 7.2 kw of dc power ampvoltage of 600v a 40-ft cu
Develop expressions for the droplet evaporation and cooling rates. Calcu- late the evaporation rate (kg/s) and cooling rate (K/s) when D = 3 mm, V = 7 m/s, T = 40°C, Too = 25°C, Tsur = 15°C, and oo = 0.60. The emissivity of water is sw = 0.96.
a household refrigerator that has a power input of 450 w and a cop of 2.5 is to cool five large watermelons 10 kg each
1. Water vapour at 90kPa and 150°C enters a subsonic diffuser with a velocity of 150m/s and leaves the diffuser at 190kPa with a velocity of 55m/s and during the process 1.5 kJ/kg of heat is lost to surroundings. Determine (i) The final temperature (..
Oxygen at 25?C and pressure of 2 bar is flowing through a rubber pipe of inside diameter 25 mm and wall thickness 2.5 mm. The diffusivity of O2 through rubber is 0.21 x 10-9 m2/s and the solubility of O2 in rubber is 3.12x10-3 kg-mole/m^-3 bar . ..
drinking water at 10oc for an office complex must be pumped along a horizontal section of pvc pipe 50 m long at 2 ms.
Simplify the continuity and θ-momentum equations under cylindrical coordinates assuming no circumferential variations ∂/θ∂ = 0.
Assume that a diaphyseal cross section carries a bending moment M. Let the cross section be circular with inner and outer diameter of 20 and 30 mm, respectively, and assume that the neutral axis (NA) passes through the centroid. Draw the cross sectio..
a cylindrical rod of stainless steel is insulated on its exterior surface except for the ends. the stead-state
A 1 foot long cylindrical rod with a diameter of 0.25 inch is subjected to a tensile load of 1,500 lbs. Suppose the rod was elongated 0.01 inch under this load, what is the stress and strain created by the load? What is the Young’s Modulus of the mat..
a carnot heat pump operates with th 310 k and qh 3 kjcycle. the coefficient of performance is coph 15. determine tl
water at 20 bar 400oc enters a turbine operating at steady state and exits at 1.5 bar. stray heat transfer and kinetic
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