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Figure P9-7b shows a compound epicyclic train used to drive a winch drum. The arm is driven at 250 rpm CCW and gear A is fixed to ground. The tooth numbers are indicated in the figure. Determine the speed and direction of the drum. What is the efficiency of this train if the basic gearsets have E0 = 0.98?
a 60-lb uniform thin panel is placed in a truck with end a resting on a rough horizontal surface and end b supported by
Calculate the heat supplied and change of entropy and show the process on a T-s diagram, indicating the area which represents the heat flow.
An inventor claims to have developed a device that executes a power cycle while operating between reservoirs at 500 and 300 K that has a thermal efficiency of (a) 45%, (b) 40%, (c) 35%. Evaluate the claim for each case.
Quarterly demand for flowers at a wholesaler are as shown. Forecast quarterly demand for year 5 using: 1. simple exponential smoothing with α=0.1 2. using Holt's model with α=0.1 and β=0.1
Effective area of a monopole. The receiving antenna in an AM car radio is 1 m long monopole, vertical above the body of the car. AM reception is between 520 kHz and 1.6 MHz. Calculate the effective area of the antenna at the two extremes of the fr..
in an effort to eliminate out-of-balance effects on a rotating disk an in-field single plane procedure was completed.
What information has to be obtained in order to ensure that the method will be a satisfactory one and determine changes in composition of a fluid. Define what is meant by refractive index, and give the relationship between the incident and refracte..
Rotation of bar OA is controlled by the lead screw which imparts a horizontal velocity v to collar C and causes pin P to travel along the smooth slot. Determine the values of r dot and theta dot, where r = OP, if h = 160mm, x= 120mm and v = 25 mm/s a..
Using the Euler-Johnson formulas with a factor of safety of 2.5, calculate the allowable axial compressive load that the rod can carry.
Determine the mass and stiffness of the absorber such that the amplitude of the absorber mass is less than 2 cm.
the breaking strength x kg of a certain type of plastic block is normally distributed with a mean of 1500 kg and a
a tank 1.5m high stands on a trolley and is full of water. it has an orifice of diameter 0.1m at 0.3m from the bottom
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