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The boy of mass 40 kg is sliding down the spiral slide at a constant speed, such that his position, measured from the top of the chute, has components r=1.5m., theta=(.7t)rad, and z=(-.5t)m, where t is in seconds. Determine the components of force Fr, F(theta), and Fz, which the slide exerts on him at the instant t=2s. Neglect the size of the boy.
A horizontal platform rests on four vertical springs, each of stiffness 15kN/m and mass 0.25kg. what will the frequency of oscillation of the table be if it has a mass of 2.okg
Consider a magnet moving in a coil of N, turns. This system can be modelled as mass spring damper system. The damping coefficient consist of both mechanical and electromagnetic damping. How can I calculate the mechanical electromagnetic damping?
Taking the temperature of the surrounding surfaces to be 20°C also, determine the rate of heat loss from the steam pipe.
for other properties fixed in a rakine cycle raising the condenser temperature causes what changes in the work and heat
What are the knot values? How many different curves is the B-spline curve composed of? Expand the B-spline curve equation to get the separate equations of the curves in b.
problem a compound cylinder is composed of a tube of 250mm internal diameter at 25mm wall thickness. it is shrunk on to
a .005 m3 quartz tube is filled with proper proportions of liquid water and water vapor at 100 kpa. it is then sealed
The center of gravity of the boom is located at G. Determine (a) the tension in cables DE and DF, (b) the reaction at A.
A new cast iron pipe is 5 km long and 15 mm diameter is used to convey water at a rate of 0.0150m3s-1. Given the absolute roughness of the pipe is 0.26 mm, density of water is 998 kg/m3 and dynamic viscosity of water is 1.14 × 10-3 kgm 1s-1.
it is observed that the time for the ball to strike the ground at b is 2.5 s. determine the speed va and angle ua at
Important information about Pressure Cooker, Steam is leaving a pressure cooker whose operating pressure is 30 psi. It is observed that the amount of liquid in the cooker has decreased by 0.4 gal in 45 minutes after the steady operating conditions..
A Brayton cycle uses air and produces a net work of 14000 Btu/s with an inlet state of 60°F,
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