Describe how a spiral galaxy is thought to form. drag the items on the left to the appropriate blanks on the right to complete the sentences. (items can be used once or not at all.) the extra density in some areas increased the gravitational pull, and then reversing the expansion that occurred due to the cosmological expansion, forming protogalactic gas clouds. the gas cloud begins to form stars, but the star formation does not use up all the gas. the angular momentum of the original gas cloud causes the gas cloud to accelerating and flatten out as it collapses, gas particles collide, and the gas spread out, thereby forming the disk of a spiral galaxy out of the leftover gas.

Which device uses ac current to operate?

Choose a synonym for the underlined homonym (a word with two or more meanings). i did not expect the boat to rock so much. a. boulder c. astound b. sway d. shock

Pl asaaap ! match the term to the correct description. a type of wave that transfers energy where the particles in the medium move perpendicular to the direction in which the energy is traveling. a type of wave that transfers energy where the particles in the medium move parallel to the direction in which the energy is traveling. movement that is back and forth, like an equal sign = a type of wave that transfers energy where the particles in the medium move in a circle motion while the energy travels left or right. movement that is like a t transfers energy from one location to another 1. wave 2. parallel movement 3. perpendicular movement 4. transverse wave 5. longitudinal wave 6. surface wave