Someone wants to sell you a ring and claims that it is a diamond ring. Look at the data table below, and write a Claim-Evidence-Reasoning (CER) that supports YOUR claim. Is the mystery stone in the ring a diamond or not? Mystery Stone
Color: Colorless
Hardness: 8.5
Density: 5.92g/cm3
Melting Point: 2759 Degrees

Real Diamond
Color: Colorless
Hardness: 10.0
Density: 3.52g/cm3
Melting Point: 3547 Degrees C

Not a diamond.

Explanation:

Since there's too much of a difference in this case it's possible that the mystery stone can be another precious stone but not diamond.

(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

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