A scientist wants to analyze signals from outer space that tell her about the age of the universe her lab is equipped with advanced sensors that detect sound waves, radio waves, and seismic waves. Which of these sensors will provide the best information

The slope of a good speed time indicates ? a. velocity b. acceleration c. direction d. speed

Natural forces that can alter ecosystems include seasons and climate changes. t or f

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?