Substance Specific Heat (J kg-1 K-1) Aluminum 900 Copper 390 Brass 380 Silver 230 Platinum 130 If 130 J of energy were added to 1 kg of each of these samples, which would experience the GREATEST temperature increase? A) Aluminum B) Brass C) Copper D) Platinum

Choice D) Platinum.

Explanation:

The specific heat of a substance gives the amount of energy it takes to raise the temperature of

After energy of size is added to a sample with specific heat and mass , the temperature change would be:

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For each of these samples, , . Apply this equation to find the change in their temperatures.

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Hence, platinum would experience the greatest temperature increase.

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