Which describes how to generate a real image of an object using a concave mirror? the object must be closer to the mirror than the focal point.
the object must be placed behind the mirror.
the object must be farther from the mirror than the focal point.

molecules are free to separate from each other and will take on the shape of the container. molecules move completely at random and high speeds. they vibrate in a fixed position and do not move around much. molecules expand to the edge of their container.

find the surface area of the sphere to the nearest square unit. use a calculator.

a. 254 in.2

b. 64 in.2

c. 127 in.2

d. 1,018 in.2