2)What is the weight density of water(lb/ft3 or N/m3)? 3)Explain the behavior of layers in the density column in relation to their specific gravities.

4)Calculate the mass density of a 2kg object with a volume of 0.00465 m3

5)Which substance in the chart on slide #5 has a density close to this?

6)Using that substance's density(from 4 and 5) calculate the specific gravity.

7)Would this substance sink or float in water? Explain why?

You have two photos of a person walking. one shows the person at the corner of third and main streets, the other shows the person at the corner of tenth and main streets. there are lampposts at every corner in this town, and the first picture shows it to be 10: 32: 00 exactly. the second picture shows it to be 10: 49: 30. you know three facts: (1) all of the clocks are synchronized; (2) there are exactly 12 equal-sized blocks per kilometer in this town; and (3) the streets that cross main in this area are numbered consecutively, with no interruptions. what is the person’s average speed in kilometers per hour?