Which will cause the greatest increase of temperature of a children's swimming pool that is at 50°F?

- A cup of water at 100°F?
- A large barrel of water at 80°F

Find the area of shaded region z=-0.89

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.

How do we determine if they are made with matter