1. A metal ball has a mass of 20 g and a volume of 6 cm3.Find its density

You are a sales representative for a company that makes a new alternate fuel for vehicles. you have prepared a presentation for the environmental engineers to sell your new product. what question do you expect the audience to ask regarding whether the new fuel will cause less damage to the environment? a. do we have to change any parts of the vehicle to use this alternate fuel? b. will the vehicles get better fuel mileage with the alternate fuel? c. how much greenhouse gas does your fuel produce compared with current fuel sources? d. is the alternate fuel more expensive than fossil fuel?

Explain what happens at the saturation point when adding salt to water at room temperature.

Suppose a comet has an orbital period of 309.1 years around the sun. what is it’s average distance from the sun?