Ahot cup of coffee (treat it like water) rests on a windowsill. if it cools off from 90 c
down to 30 c, releasing 103,310 j in the process, how many ml (grams) of coffee is in the
cup?

Explanation:

We have to use the heat equation for this problem:

ΔT

Where:

Q=heat=103310 J

m = mass = Unknow

Cp=specific heat (of water)=4.18

ΔT= 30 ºC

Now, we have to solve for "m":

Finally, we have to convert from grams to mL using the density value .

specific gravity is the density of a substance divided by the density of water. since (at standard temperature and pressure) water has a density of 1 gram/cm3, and since all of the units cancel, specific gravity is usually very close to the same value as density

so "c" is the answer

plz give brainliest

answer : a model is often used to explain and make things easier to understand when any scientific topic needs to be demonstrated and explained.

as in this case where a scientist wants to use a model to present the results of his detailed scientific investigation. he should do it as it will him to make the audience understand the concept in a much better way. also, it can be changed according to new scientific understandings.