Substance x transfers thermal energy to substance y through conduction. what is an accurate conclusion about the condition of both substances before conduction occurred? a. their molecules had the same amount of energy. b. the substances were the same temperature. c. substance x’s molecules were faster than substance y’s. d. substance x was cooler than substance y.

Option (C) is the correct order.

Explanation:

Substance X has thermal energy this means that there are more number of collisions and hence there will be maximum kinetic energy in its molecules.

In conduction heat flows from hotter body to colder body. Due to this substance X is able to transfer its thermal energy to substance Y.

But before conduction substance Y molecules did not have kinetic energy that is they were not in motion. So, molecules of substance Y only had potential energy that is they were at rest.

Thus, we can conclude that Substance X’s molecules were faster than substance Y’s is an accurate conclusion about the condition of both substances before conduction occurred.

54 degrees incident angle = reflected angle

angle is from normal turned to line of ray

find the sum of the two horizontal vectors and the sum of the two vertical vectors

isoceles right angled triangle