Part A A 2.0 kg ball and a 4.0 kg ball are connected by a 3.0-m-long rigid, massless rod. The rod and balls are rotating clockwise about its center of gravity at 15 rpm. What magnitude torque will bring the balls to a halt in 6.0 s? Express your answer in newton-meters. V ? T = 2.32 N . m Submit Previous Answers Request Answer X Incorrect; Try Again; One attempt remainingV PartA The (gure 1] shows two thin beams joined at right angles. The vertical beam is 19.0 kg and 1.00 m long and the horizontal beam is 26.0 kg and 2.00 m long. Neglect the lateral dimensions 0' the beams. Find the center oi gravity oi the two joined beams. Express your answer in the term as, y, taking the origin attire corner where the beams join. Express your answers In meters. Enter your answers separated by a comma. .4100 Quest Answer v PartB Calculate the gravitational torque on the joined beams about an axis through the corner. Express your answer with the appropriate units. mtg/KW)? T = Value Units 3' Quest Answer Provide Feed back Figure 1 01 1 0 2.00 m Part A A 2.2-m-tall, 90-cm-diameter concrete column supports a 1.0x105 kg load. By how much is the column compressed? The Young's modulus of concrete is 3.0 x 1010 N/m2. Express your answer in millimeters. VO AEd ? AL = 1.13 . 10 -4 mm Submit Previous Answers Request Answer X Incorrect; Try Again; 4 attempts remainingPart A A 3.0-m-long rigid beam with a mass 150 kg is supported at each end. An 90 kg student stands 2.0 m from support 1. How much upward force does support 1 exert on the beam? (Figure 1) Express your answer to two significant figures and include the appropriate units. ? F1= Value Units Submit Previous Answers Request Answer X Incorrect; Try Again; 4 attempts remaining V Part B How much upward force does support 2 exert on the beam? Express your answer with the appropriate units. Figure