In a “modern art” exhibit, a multicolored empty industrial wire spool is suspended from two light wires as shown in Fig. 8.56. The spool has a mass of 50.0 kg, with an outer diameter of 75.0 cm and an inner axle diameter of 18.0 cm. One wire is attached tangentially to the axle and makes a angle with the vertical. The other wire is attached tangentially to the outer edge and makes an unknown angle with the vertical. Determine the tension in each wire and the angle θ.
Answer to relevant QuestionsA flat, solid cylindrical grinding wheel with a diameter of 20.2 cm is spinning at 3000 rpm when its power is suddenly turned off. A workman continues to press his tool bit toward the wheel’s center at the wheel’s ...(a) Two dams form artificial lakes of equal depth. How-ever, one lake backs up 15 km behind the dam, and the other backs up 50 km behind. What effect does the difference in length have on the pressures on the dams? (b) Dams ...When driving your car on an interstate at the posted speed limit (of course) and an 18- wheeler quickly passes you going in the opposite direction, you feel an force toward the truck. Why is this? A bimetallic rod as illustrated in Fig. 9.34 is com-posed of brass and copper. (a) If the rod is subjected to a compressive force, will the rod bend toward the brass or the copper? Why? (b) Justify your answer ...Suppose you use the tip of one finger to support a 1.0-kg object. If your finger has a diameter of 2.0 cm, what is the stress on your finger?
Post your question