Part A Centauri A and Centauri B are binary stars with a separation of 3.45 x 10 2m and an orbital period of 2.52 x 10's. Assuming the two stars are equally massive (which is approximately the case), determine their mass. AEd ? m = kg Submit Request AnswerV PartA The three air carts shown in the figurelg) have maswsI Find the final speed of the carts. reading from left to right, of m, 2m, and 4m, respectively. Initially. the cart on the right is at rest. whereas the other two carts are moving to the right with a speed no. All carts are equipped with putty bumpers that give completely inelastic collisions. AE *5 f" O ? Elf = m muest Answer v Part5 Express your answer in terms of some or all of the variables on and m. Calculate the ratio of the final kinetic energy of the system to the initial kinetic energy. Express your answer using three significant figures. .A'Fcpo FISH-"'9 1 oft SIS Part A A piece of wood with a density of 706 kg/m is tied with a string When the wood is floating, is the reading on the scale greater than, less than, or equal to its previous reading? to the bottom of a water-filled flask. The wood is completely immersed. Suppose the flask with the wood tied to the bottom is placed on a scale. At some point the string breaks and the wood greater than rises to the surface where it floats. O equal to O less than Submit Request Answer Part B Choose the best explanation from among the following: The same mass is supported by the scale before and after the string breaks, and therefore the reading on the scale remains the same. When the block is floating it no longer pulls upward on the flask; therefore, the reading on the scale increases. When the block is floating the water level drops, and this reduces the reading on the scale. Submit Request