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- Problem 2.139 Figure 1 of 1 300 mm 30° 30° 300 mm 300 mm Part A Determine the magnitude of the projected component of the force F = 400 N acting along line OA. (Figure 1) Express your answer with the appropriate units. μÀ FOA 248.927 | N Submit My Answers Give Up ? Incorrect; Try Again; 5 attempts remaining Provide Feedback ContinueAn air-conditioning chiller unit weighing 2,000 lb is to be supported by four air springs. Determine the stiffness of the air springs needed such that the natural frequency of vibration of the unit has an average of 7.5 rad/s 15.21 lb/in 291.1 lb/in 121.0 lb/in 72.78 lb/inEngineering Mechanics Determine the moment of inertia Ix (m.4) of the shaded area about the centroid. Type your answer in two (2) decimal places. Given: x1 = 7 mx2 = 7 mx3 = 12 my1 = 10 my2 = 12 mr = 3 m (If you already answered this, please do not answer. Your answer is not correct.)
- As a train accelerates uniformly it passes successive 800 meter marks while traveling at velocities of 3 m/s and then 12 m/s. [Select] ✓(a) For the first mark of the journey, what is the acceleration of the train in m/s². [Select] [Select] (b) Determine the train's velocity when it passes the next mark in m/s. (c) Determine the time it takes to travel the 1.6-km distance in seconds.3G ۱۲:۰۷ ص Mzain IQ محمد احمد قبل ۳ دقائق A) In Fig. (2) both ends of the manometer are open to the atmosphere. Estimate the specific gravity of fluid X. SAE 30 Oil 10 cm 9 cm Water S cm 7 cm Fluid X 6 cm 4 cm 12 cm Fig. 2A standard sinuosoidal function, such as sinx and cosx, has a period of 2*pi and at any given sinusoidal function its frequency can be calculated as f = w/ (2*pi). Find the smallest period for the function y = sin((pi/12) * t). a. None of the choices O b. 2*pi c. 24 O d. 12 O e. 6
- PROBLEM 11.161 The oscillation of rod OA about O is defined by the relation 0 = where and r are expressed in radians and seconds, respectively. Collar B slides along the rod so that its distance from 0 is r= 6(1- e are expressed in inches and seconds, respectively. When t= 1 s, determine (a) the velocity of the collar, (b) the acceleration of the collar, (c) the acceleration of the collar relative to the rod. (3/z)(sin z), where r and tThe block at C is moving downward at vc = 3.2 ft/s . (Figure 1) Figure @AB 2 ft B 3 ft 30° 1 of 1 vc Part A Determine the angular velocity of bar AB at the instant shown. Express your answer to three significant figures and include the appropriate units. WAB = μA Value Submit Previous Answers Request Answer X Incorrect; Try Again Provide Feedback Units ?Engineering Mechanics Determine the moment of inertia Ix (m.4) of the shaded area about the centroid. Type your answer in two (2) decimal places. Given: x1 = 7 mx2 = 7 mx3 = 12 my1 = 10 my2 = 12 mr = 3 m
- Engineering Mechanics - Moment of InertiaDetermine the moment of inertia Ix (m.4) of the shaded area about the centroid. Type answer in two (2) decimal places. Given: x1 = 6 mx2 = 7 mx3 = 10 my1 = 10 my2 = 10 mr = 3 mA model airplane flies over an observer O with constant speed in a straight line as shown. Determine the signs (positive [p], negative [n], or zero [z]) for r, r, r, 0, 0 and 0 for each of the positions A, B, and C. Answers: Choose "p" or "n" or "z" Position r A B I B C r 0 ÖIn (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 >