A mouse of mass 30.0 g falls 110 m down a vertical mine shaft and lands at the bottom with a speed of 8.4 m/s. During its fall, how much work (in J) is done on the mouse by air resistance

Which of the following is considered to be a vector?               a.  temperature    b.  velocity    c.  time    d.  mass

(a) calculate the number of electrons in a small, electrically neutral silver pin that has a mass of 10.0 g. silver has 47 electrons per atom, and its molar mass is 107.87 g/mol. (b) imagine adding electrons to the pin until the negative charge has the very large value 1.00 mc. how many electrons are added for every 109 electrons already present

Carbon 14 is a naturally occurring stable