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Consider the following dimensions for the differential band brake of Figure 18.17, which uses a woven lining having a design value of f = 0.20. Radius of drum = 4 in., band width = 1 in., c = 9 in., a = 2 in., s = 0.5 in., and f = 270°. Find
(a) the brake torque if the maximum lining pressure is 75 psi,
(b) the corresponding actuating force F, and
(c) the values of dimension s that would cause the brake to be self-locking.
one cubic foot 1 ft3 of air is contained in a piston - cylinder arrangement. the axis of the cylinder is oriented in
the total external force on an object is f 10t i 60 j lb. at t 0s the objects velocity is v 20 j fts. at t 12 s
Sketch a dislocation loop in the form of a circle and specify the Burgers vector. Show portions of the dislocation that are screw-like and those that are edge-like in nature. Considering the energy per unit length of the screw dislocation being somew..
1. Who is responsible? 2. What is the punishment if any? 3. How could the accident have been prevented? The report should be done by each student. The report should include a cover page and 3-4 single-spaced pages.
a cyndrical tin can with diameter d1 85mm has circular hole drilled in the bottom with diameter d2 6.35 mm. initially
a 30-l electrical radiator containing heating oil is placed in a 50 m3 room. both the room and the oil in the radiator
You arrive home from a winter trip and turn on your baseboard (resistance coil) heater to warm the room. It remains on for 14 minutes, during which time it steadily consumes 3.5 kW of electricity. How much energy was transferred to the room in kJ?
Determine the maximum shear stress at the outer surface of the cylinder.
Estimate the expected capital costs of the generation facility in dollars/kW capacity and the minimum cost of electricity per kWh generated by the addition, if they are operated at full capacity for 6 h/day and have a lifetime of 30 years.
A church sanctuary is designed for an occupancy of 300 persons. The outside airflow rate is 15 cfm per person. The inside design temperature is 74°F and the outside air design temperature is 89°F. Approximate internal heat gains per occupant are 2..
Classify the sections of the components in automatic control system.
considerr mach 2 flow in a twodimensional rectangular channel of length 5 m and height 1 m. the bottom wall of the
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