A leaf spring of semi-elliptical type has 11 plates each 9 cm wide and 1.5 cm thick. The length of spring is 1.5 m. The plates are made of steel having a proof stress (bending) of 650 MN/m². To what radius should the plates be bent initially? From what height can a load of 600 N fall on to centre of the spring, if maximum stress is to be one-half of the proof stress? Take E = 200 GN/m².

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In (Figure 1), F = {80i + 96j + 48k} lb. Figure 1 ft -2 ft 3 ft 45° B 1 of 1 Part A Determine the magnitude of the moment of F about point A. Express your answer in pound-feet to three significant figures. 15] ΑΣΦ11 MA = Submit Part B α, B, y = Submit Request Answer Provide Feedback Determine the coordinate direction angles of the moment of F about point A. Express your answers in degrees to three significant figures separated by commas. vec U/ ΨΕ ΑΣΦ ↓↑ vec Request Answer ? lb. ft ? Next >

Fluid Mechanics

Solve all with clear explanation please, fluid mechanics