Say you shoot a paintball, which travels at 307 km/s. How long will it take the paintball to hit the target 250 meters away?

About 3% of the water on earth is freshest. only about 40% of that freshwater is available for human use. why is so much freshwater unavailable for human use?

If a straight-chain hydrocarbon is a gas at room temperature, how many carbon atoms will it have? a. 6 carbon atoms b. 12 carbon atoms c. 24 carbon atoms d. 3 carbon atoms

Write the overall equation for the reaction occurring in lithium battery?