1. A group of students are performing an experiment in class using collision carts on a track. An 8 kg cart with a velocity of 4 m/s hit a stationary cart
weighing 4kg. The 8 kg cart stops and the 4 kg cart keeps going. What is
the velocity of the 4 kg cart after the collision?

the answer would be b i believe

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

sure im new too!

explanation: