Skiers often put hot packs in their gloves to keep warm. the warm temperature is the result of a reaction inside the pack. what type of reaction is this

explanation:

could i give you a exaplo that could you?

jupiter is the largest planet in our solar system, having a mass and radius that are respectively, 318 and 11.2 times that of earth. suppose that an object falls from rest near the surface of each planet and that the acceleration due to gravity remains constant during the fall. each object falls the same distance before striking the ground. determine the ratio of the time of fall on jupiter to that on earth.

3. dark matter

empty space could also be a simple vacuum