Part A The three 220 g masses in (Figure 1) are connected by massless, rigid rods. Part B What is the triangle's kinetic energy if it rotates about the axis at 5.6 rev /s ? Express your answer with the appropriate units. View Available Hint(s) HA ? Krot = 4.56 kgm Submit Previous Answers Provide Feedback Figure 40 cm 40 cm Axis \\60 60 40 cmPart A A 25 kg solid door is 220 cm tall, 94 cm wide. What is the door's moment of inertia for rotation on its hinges? Express your answer in kilogram-meters squared. IVO AEd ? I = 0.0349 kg . m Submit Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remaining Part B What is the door's moment of inertia for rotation about a vertical axis inside the door, 14 cm from one edge? Express your answer in kilogram-meters squared. IVO AED ? I = 43.2 kg . m Submit Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remaining. . . . . D Part A (gure 1) shows a uniform 2.0 kg rod that can [wet in a vertical plane on an axle. We want to find the net torque about the axle. V PartB For each of the tour torces F1, F3, 13" path and 15,\- _ _ v Part A An 8.6-cm-diameter, 340 g solid sphere as released from rest at the top of a 1.8m-long, 19 incline. It rolls, without slipping, to the bottom. What is the sphere's angular velocity at the bottom at the incline? Express your answer in radians per second. > View Available Hint(s) --o-? s: = rad/s v Part3 What fraction of its kinetic energy is rotational? D View Available Him(s) Part A A 2.3 kg , 20-cm-diameter turntable rotates at 130 rpm on frictionless bearings. Two 460 g blocks fall from above, hit the turntable simultaneously at opposite ends of a diameter, and stick. What is the turntable's angular velocity, in rpm, just after this event? Express your answer in revolutions per minute. HA ? W = 10.73 rpm Submit Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remainingPart A A hollow sphere is rolling along a horizontal floor at 6.00 m/s when it comes to a 28.0 incline. How far up the incline does it roll before reversing direction? Express your answer with the appropriate units. UA ? 10.73 rpm Submit Previous Answers Request Answer X Incorrect; Try Again; 4 attempts remainingPart A A merry-go-round is a common piece of playground equipment. A 3.0-m-diameter merry-go-round, which can be modeled as a disk with a mass of 220 kg , is spinning at 20 rpm. John runs tangent to the merry-go-round at 4.2 m/s, in the same direction that it is turning, and What is the merry-go-round's angular velocity, in rpm, after John jumps on? jumps onto the outer edge. John's mass is 30 kg. Express your answer in revolutions per minute. AEQ ? w = 5.1 rpm Submit Previous Answers Request Answer X Incorrect; Try Again; 4 attempts remaining_ _ _ _ 7 Part A A 76 g, 32-cm-long rod hangs vertically on a frictionless, horizontal axle passing through its center. A 15 g ball of clay traveling horizontally at 2'2 \"1/5 mm and Sinks \"3 the my mum" \"P \"f the md' To what maximum angle, measured from vertical, does the rod (with the attached ball of clay) rotate? Express your answer in degrees. D View Available Hint(s) Ive a = 27.4 a m Previous Answers X Incorrect; Try Again; 4 attempts remaining