What is the total displacement of a dog that runs north 80 returns to its master and then runs south 20 meters

In positive numbers less than 1, the zeros between the decimal point and a non-zero number are blank significant

Which atomic model was proposed as a result of j. j. thomson’s work?

Agraduated cylinder contains 63.0 ml of water. a piece of gold, which has a density of 19.3 g/ cm3, is added to the water and the volume goes up to 64.5 ml. calculate the mass in grams of the gold that was added to the water. explain how you got your answer.