A student is making a model of the layers of Earth. She is using materials with different densities to represent the layers. The table shows the materials she has chosen for two layers.

How should the density of the material the student uses for the mantle compare to the density of the materials chosen for the other layers?

It should be more dense than foam.

It should be more dense than glass,

It should be the same density as foam

It should be the same density as glass.

Please English
Thank you:)

the answer is a. co2, this would be colder than the : )

explanation:

(newtons first law)

conservation of momentum law states :

momentum before collision = momentum after collision

momentum p (kg-m/s)= mass * velocity

say moving car=1 000 kg, velocity = 10 m/s then p = 1 000*10= 10 000 kg-m/s

say still car = 2 000 kg, velocity = 0 m/s then p = 2 000* 0 = 0 kg-m/s

total momentum prior to collision = 10 000 + 0 = 10 000 kg-m/s

momentum after collision = 10 000 kg-m/s

mass now = 1 000 kg+2 000 kg = 3 000 kg

10 000 = 3 000 kg* velocity m/s

10 000/3 000 = velocity

3.33 m/s = velocity after collision

an impulse is a force applied over time , momentum is exclusive of external forces and a perfect collision is implied

answermeridional ;