A 0.9 kg toy car moving in the positive x direction with speed 5.9 m/s hits a toy car of equal mass moving in the positive y-direction with speed of 3.4 m/s. If the collision is perfectly inelastic, calculate the speed of the cars (in m/s) right after the collision. Enter a number with one digit after the decimal point.

If an astronaut takes an object to the moon the following is true (choose only one). a the mass will change but the weight will be the same. b both the mass and the weight of the object will be the same. c the weight will change but the mass will be the same. d both the mass and the weight of the object will change.

Another word for electromagnetic energy is a. heat b. force c. matter d. radiation

Consider a file currently consisting of 200 blocks. assume that the file control block (and the index block in the case of indexed allocation) is already in memory. calculate how many disk i/o operations are required for contiguous, linked, and indexed (single-level) allocation strategies, for each of the conditions listed below. in the contiguous-allocation case, assume that there is not room to grow at the beginning but there is room to grow at the end. also assume that the block information to be added is stored in memory.