What is the incentive to produce newer versions of smartphones for cell phone companies?

The ratio of girls to boys in a an astronomy club was 1 : 8. There were 5 girls. How many total members were there in the club?

And are facing each other of the two and the friend are on the separate more you when the moving. Your friend weighs a lot on you is push off of each other, the force exerts you exert on him. Less than

Why don't lights turn green for both north and south bound traffic?

Is this a testable question? Are cats better than dogs? If not rewrite the question in correct format?

3 example of conductors

When a cyclist rides past you on the street, this is an example of

Why are galaxies visible

I hockey puck slides across an ice rink more easily than it does across a rough concrete surface why is this

Sodium-22 Sodium-25 # of protons # of neutrons # of electrons

As the particles of a solid undergo sublimation, they A: lose energy B: move closer to one another C: change temperature D: move farther apart from one another