14. A car leaves home and moves at an average velocity of 65 miles/hr for 2
hours when the driver discovers she
must return home. It only takes 1 1/2
hours for the car to return home. Find
the average velocity of the car while it
is returning home.

In order for the bug to fly through the air a force has to push the bug forward. identify this force. how does the bug produce

The experiment was repeated many years later but the gases were mixed in a different type of container. a white solid was obtained which was xenon fluoride. predict whether you think 1) krypton and 2) radon will react with fluorine. explain reasons for your predictions

The magnitude of the amount of energy released by burning a fuel source, measured in energy per unit mass, is called its fuel value. note that the fuel value is the negative of the isobaric specific heat of combustion for the fuel. if all the energy obtained from burning 1.23 pounds of butane with a fuel value of 10.85 kcal/g is used to heat 128.0 kg of water at an initial temperature of 18.3 °c, what is the final temperature? note that 1 lb = 453.6 g.