Acar drives on a highway with a speed of 68mi/hr. what is the speed in km/hr?

The graph describes the motion of an object. the object moves with from a to b. it from b to c. it moves with from c to d.

(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

Atomic nuclei of almost all elements consist of