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Packages having a mass of 6 kg slide down a smooth chute and land horizontally with a speed of 3 m> s on the surface of a conveyor belt. If the coefficient of kinetic friction between the belt and a package is μk = 0.2, determine the time needed to bring the package to rest on the belt if the belt is moving in the same direction as the package with a speed v = 1 m> s.
the disk in a computer hard drive spins at 7200 rpm. at the radius of 30 mm a stream of data is magnetically written on
a belt pulley is fastened to a 75 mm shaft running at 360 rpm by means of a key 18 mm wide and 125 mm long. the
two large well-insulated tanks of 2m diameter and 5m in height are filled with air. one tank is initially at 1bar and
there are so-called unwritten laws of engineering that recommend acceptable conduct and behavior for engineers in
Consider two ideal gases, A and B that are initially separated. For each of the following processes, the gases are allowed to mix. Determine if the entropy change of the system is positive, negative, or zero. Explain. (a) The process occurs isotherma..
A connection of rod of 50 mm diameter has a rectangular block 50 mm wide and 25mm thick forged at its end. A turned radius of 25 mm joins the rod and the block. Draw the projections of the rod showing curves of intersection.
What is a typical direction of failure plane w.r.t the direction of loading axis when a ductile material is loaded under A) Axial loading only B) Compressive loading only. C) Torsional loading only (Assume material is isontropic and even and loading..
1. a process water with a specific heat capacity of 4.182 k.1 kg-i k-1 flows at a rate of 0.050 kg s-i through a heat
A 0.025 m thick flat plate having a 20 cm X 20 cm cross section is made of plain carbon steel (k=30 W/mC), alpha=32.7 x10^-7m^2/s). The initial plate temperature is 727C. it is cooled by blowing 27C air over the top surface of the plate at 30 m/s; th..
Name products that are manufactured using these processes and write two sentences on why you know it's made from this process.
u.s. energy use was approximately 100 quads quadrillions btu in 2008. about 85 of this energy was supplied by burning
rope bca passes through a pulley at point c and supports a crate at point a. rope segment cd supports the pulley and is
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