Dylan puts two magnetic toy trains very close to each other on a track. What will happen next, and -hy?
a
The trains will not move because the magnets are not touching.
b
The trains will move closer to each other because the magnetic force will pull the trains
together
с
The trains will move away from each other because the magnetic force will push the trains
apart.
d
The trains will move away from each other because the magnets are not touching.

answer: the rock sample is a sedimentary rock.

explanation:

it is given that:

mass of rock sample, m = 2.7 g

volume of rock sample,

so, density of rock sample will be

since, the density of rock sample is . hence, the rock sample is a sedimentary rock, whose densities varies between .

seeing the graph would

can be answered using momentum.

momentum = p

p1= mass1 * velocity1

p1 = p2

therefore

p1 = 6kg * 4m/s

p1 = 24kgm/s

p2=m2 * v2

24 kgm/s = 7kg * v2

v2 = 24 kgm/s / 7kg

v2= 3.42 m/s