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- A uniform rod AB of length 7.4 m and mass M=3.8 kg is hinged at A and held in equilibrium by a light cord. A load W = 22 N hangs from the rod at a distance d so that the tension in the cord is 98 N. Part B Part C Determine the horizontal force on the rod exerted by the hinge. Express your answer to two significant figures and include the appropriate units. Enter positive value if the force is directed to the right and negative value if the force is directed to the left. HA FAX = 59 N Submit Previous Answers Request Answer ? X Incorrect; Try Again; 3 attempts remaining Check your signs. 4 Part D Determine d from the appropriate torque equation. Express your answer to two significant figures and include the appropriate units. d= 1.43 Submit με m Previous Answers Request Answer ? X Incorrect; Try Again; One attempt remainingYou are on a pirate ship and being forced to walk the plank (Figure 1). You are standing at the point marked C. The plank is nailed onto the deck at point A, and rests on the support 0.75 m away from A. The center of mass of the uniform plank is located at point B. Your mass is 85 kg and the mass of the plank is 45 kg. Part A What is the minimum downward force the nails must exert on the plank to hold it in place? Express your answer to two significant figures and include the appropriate units. |Fnails|= for Part A for Part Vndo for Part redo for Part A ret for Part A keyboard shortcuts Value UnitsNone
- In the figure, the rod moves to the right with a speed of 1.1 m/s and has a resistance of 2.1 2.(Eigure 1) The rail separation is 1 = 27.0 cm The magnetic field is 0.38 T, and the resistance of the U-shaped conductor is 22.0 2 at a given instant. Figure B (outward) 24°C Güneşli v dr dA 1 of 1 ii Ara Part A Calculate the induced emf. Express your answer to two significant figures and include the appropriate units. e= Value Submit Request Answer Part B μà I = Calculate the current in the U-shaped conductor. Express your answer to two significant figures and include the appropriate units. Value Submit (L) Request Answer Units f Units ? ?Part A End A of the bar AB in (Figure 1) rests on a frictionless horizontal surface, and end B is hinged. A horizontal force F of magnitude 270 N is exerted on end A. Ignore the weight of the bar. What is the horizontal component of the force exerted by the bar on the hinge at B? Express your answer with the appropriate units. HẢ ? Fh = Value Units Submit Request Answer Part B What is the vertical component of the force exerted by the bar on the hinge at B? Express your answer with the appropriate units. HÅ ? F, = Value Units Submit Request Answer Figure 1 of 1 Provide Feedback Next > 5.00 m 4.00 m A B.You wish to help the child carry the backpack. Find the magnitude of force you should apply to the backpack with weight 34 lb and the angle to minimize the amount of force the child needs to provide if a is fixed at 20.1°. B = Child B W y α O You X
- The 20-g bullet is travelling at 400 m/s when it becomes embedded in the 2-kg stationary block. The coefficient of kinetic friction between the block and the plane is = 0.4. (Eigure 1) Figure 400 m/s O 1 of 1 Part A Determine the distance the block will slide before it stops. Express your answer to three significant figures and include the appropriate units. S = Value Submit μA Provide Feedback Request Answer Units ?Include a free body diagram please.Constants If a compressive force on the tibia bone in the lower part of an adult person leg exceeds about 4 x 10°N, it would break (we assume that the ankle is pushing up). Let's consider that this person steps off a chair that is 0.40 m above the floor. Part A What minimum stopping distance does the person need to avoid breaking his tibias, if landing stiff-legged on the surface below? Suppose that the mass of the human is 65 kg Express your answer to two significant figures and include the appropriate units. HA Value Units