When a 3.00-kg object is hung vertically on a certain light spring described by Hooke's law, the spring stretches 2.64 cm. If the 3.00-kg object is removed, how far will the spring stretch if a 1.50-kg block is hung on it

Dry ice is solid carbon dioxide that is used in the transport of food and medicine. dry ice becomes a gas at –78.5°c without becoming a liquid first.

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?

Chemical energy is a form of energy. a. heat b. kinetic c. potential d. electromagnetic