2 points 7. Given the following specific heats of energy, if the materials were left
out in the sun for 2 hours, which material would be the hottest? *
Material A: 2.03 J/gC
Material B: 0.71 J/gC
Material C: 0.89 J/gC
Material D: 0.45 J/gC

Material D as its specific heat is the smallest.

Explanation:

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In this case, since the specific heat is defined as the energy required to increase (or decrease) 1 gram of a material by 1 °C, we can infer that the smaller the specific, the less energy is required for such temperature change, therefore, since material D needs 0.45 J of energy to increase the temperature of 1 g by 1 °C we can see that it will become the hottest as it has the smallest specific heat among the other ones.

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nacl is added to the aqueous of what? ? in order to get a proper answer you have to specify the exact composition of the aqueous solution.

question: ray weighs 100 kilograms, his wrestling partner, bobby, weighs 50 kilograms. if ray moves at 4 m s , how fast will bobby have to run at him to apply an equal amount of kinetic energy?

answer: 8 m/s he needs to run twice as fast to keep up so he has some work to do

explanation:   if the mass has units of kilograms and the velocity of meters per second, the kinetic energy has units of kilograms-meters squared per second squared.

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(jacemorris04)