Sulfur, Oxygen, water, and sodium chloride are all examples of pure substances. Pure substances are different than mixtures in many ways. Which of the following describes all pure substances versus a mixture?

Acube has a volume of 2011 cubic inches. what is the angle measure between a side of a cube and its interior diagonal?

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?

An object weighs 40n in air, weighs 20n when submerged in water and 30n when submerged in a liquid of unknown density. what is the density of the liquid?