Celery stalks that are immersed in fresh water for several hours become stiff and hard. Similar stalks left in a 0. 15 m salt solution become limp and soft. From this we can deduce that the cells of the celery stalks are.

Which object has the least amount of kinetic energy? a. a car driving down a road b. a soccer ball rolling down a hill c. a bicycle locked to a bike rack d. a satellite orbiting earth

Which statement best describes gravity? it is the force that repels only very small objects. it is the force that acts between objects with zero mass. it is the force that sometimes acts only on very large objects. it is the force that acts between any two objects in the universe.

of the following words means "to make something unnecessary"? who talke constantlyor in na