. A 750 kg boulder is raised from a quarry 125 m deep by a long, uniform chain having a mass of 575 kg. The chain can support a maximum tension no greater than 2.5 times its weight without breaking. How long does it take for the boulder to be lifted out at maximum acceleration if it started from rest?

15.8 s

17.3 s

10.0 s

20.0 s

the density of gold = 19.3 g/cm3

the relation between density and mass and volume is

density = mass / volume

given :

mass of gold = 13 g

density = 13g / volume = 19.3

volume = 13 /19.3 = 0.67 cm^3

thus volume of gold nugget = 0.67 cm^3

it is a solid

explanation:

water and alcohols have similar properties because water molecules contain hydroxyl groups that can form hydrogen bonds with other water molecules and with alcohol molecules, and likewise alcohol molecules can form hydrogen bonds with other alcohol molecules as well as with water.