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Block A in the figure shown has a mass of 10 kg and block B has a mass of 20 kg. The coefficients of static friction are 0.5 between the two blocks and 0.15 between the lower block and the supporting surface. Calculate the force P that will cause motion to impend.
A vertical, closed-loop geothermal heat pump is under consideration for a new 50,000-ft2 school building. The design capacity is 100 tons for both heating and cooling.
Derive the describing equation for a stretched string subject to gravity loading and viscous drag. Viscous drag per unit length of string may be expressed by c(∂u/∂t); the drag force is proportional to the velocity. Classify the resulting equation..
a carnot engine operating on air accepts 50 kjkg of heat and rejects 20 kjkg. calculate the high and low reservoir
Make a bond graph that would allow you to predict the crank torque τ for low speeds of rotation, ω. (Note that you do not have enough information to evaluate all the system parameters.)
h injection molding was portions of the part not filling. List and explain three process parameters that may aid in the correction of this error. What other errors might adjustments in these parameters help allay?
The joint of a space frame is subjected to four member forces. Member OA lies in the x-y plane and member OB lies in the y-z plane. Assume that F = 170lb. Determine the force F1 acting in OA member required for equilibrium of the joint.
Fluid is flowing in the pipe has two areas. The velocity of the fluid flowing in the larger area is 4 ft/s. The radius of the larger area is 4 inches. The radius of the smaller section is 2 inches. What is the velocity of the fluid in the small secti..
Suppose the average number of employees per industry group in the manufacturing database is believed to be less than 150 (1000s). Test this belief as the alternative hypothesis by using the 140 SIC Code industries given in the data- base as the sa..
An aircraft radio weighing 106.75 N is to be isolated from engine vibrations ranging in frequencies from 1600 to 2200 cpm. What statically deflection must the isolators have for 85% isolation?
a heat exchanger is to be designed to condense 1100 kghr of steam ay 150 kpa. for this purpose cooling water at 50
a sample of tungsten w contains an edge dislocation. w can be treated as elastically isotro pi c and the dislocation is
a small experimental rocket which has a mass of 70 kg is accelerated at a rate of 6 ms2. determine the total force
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