Michelle wants to salt from water. she tried pouring the salt water through a piece of filter paper, but the salt did not separate from the water. what change should she make to her plan to separate the mixture successfully. a. use two pieces of filter paper instead of one b. freeze the salt water, and then let it melt again c. allow the water to evaporator d. stir the salt water with a magnet

Very large accelerations can injure the body, especially if they last for a considerable length of time. one model used to gauge the likelihood of injury is the severity index ( ), defined as =/ . in the expression, is the duration of the accleration, but is not equal to the acceleration. rather, is a dimensionless constant that = the number of multiples of that the acceleration is equal to.in one set of studies of rear-end collisions, a person's velocity increases by 13.7 km/h with an acceleration of 36.0 m/s2 . let the + direction point in the direction the car is traveling. what is the severity index for the collision?