Two airplanes leave an airport at the same time . the velocity of the first airplane is 710 m/h at a heading of 49.5 degrees. the velocity of the second one is 580 m/h at a heading of 154 degrees. how far apart are they after 3.3 hours? answer in units of m

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?

What pressure difference is required between the ends of a 2.0-m-long, 1.0-mm-diameter horizontal tube for 40 c water to flow through it at an average speed of 4.0 m/s?

If you put a helium-filled balloon in the refrigerator, what will happen?