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A tape moves over drums A and B as shown. Drum A has a mass of 0.5 kg and a radius of gyration of 32 mm. Drum B has a mass of 0.25 kg and a radius of gyration of 16 mm. The radius of drum A and drum B are 40 mm and 20 mm, respectively.
Knowing that the tension in the portion of tape to the left of drum A is and remains to be 4 N,
Determine
(a) the required constant tension TB if the speed of the tape is increased by 4 m/s in 0.3 seconds and
(b) the corresponding tension in the portion of the tape between the drums.
A community has three major sources of power supply: electricity, gas and oil. Let E, G and O denote events of shortages of each of these power sources, respectively. Their probabilities are estimated to be 0.15, 0.10 and 0.20 respectively.
A moist soil sample weighing 22.2 N has a moisture content of 20%. How man N of water must be added to the sample to increase the moisture content to 30%
An open rectangular tanks is 3m wide and 4m long. The tank contains water to depth of 2m and oil (SG=0.8) on top of the water to a depth of 1m. Determine the magnitude and location of the resultant force acting on one end of the tank (i.e. 3m high by..
Find an equation that expresses the relationship between the wages earned (x) and the Social Security taxes paid (y) by an employee who earns less than the maximum taxable wage base.
A floor is to be supported on hardwood timber joists that are spaced at 0.5m centres and span 5.0m. The joists support flooring 20mm thick and an applied live load of 2kN/m2 Design a typical joint 50mm wide
A trapezoidal channel with a bottom width of 4 feet and side slopes 2:1 (H:V) and a bed slope of 1 percent conveys a discharge of 50,000 gpm. Assume n = 0.025. Compute the normal depth
a cu triaxial test with sigmac 20 psi is performed on a sand and a deviator stress of 80nbsppsi fails the specimen.
Find the time for one complete cycle of this motion if the spring constant is 21 N/m. (Assume that once the pendulum ball hits the spring there is no effect due to the vertical movement of the ball.)
Vehicles arrive at a freeway on-ramp meter at a constant rate of six per minute starting at 6:00A.M. Service begins at 6:00A.M. such that u(t)=2+0.5t, where u(t) is in veh/min and t is in minutes after 6:00A.M.
Two water reservoirs A and B are connected to each other through a 40 m long, 2 cm cast iron pipe with a sharp-edged entrance. The pipe also involves a swing check valve and a fully open gate valve.
What distance on 5% grade should be laid out with a tape that measures 30.010 m under field conditions if the horizontal distance is to be 430.00m
A trapezoidal channel with a bottom width of 4 feet and side slopes 2:1 (H:V) and a bed slope of 1 percent conveys a discharge of 50,000 gpm. Assume n = 0.025. Compute the normal depth.
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