Answer:
The main purpose of research is to inform action, to prove a theory, and contribute to developing knowledge in a field or study.
Explanation:
Im sorry bro nobody’s gonna do all that ask your parents or something
The older the rocks were the more like they were to have fossils.
Answer:
Energy added to cold water, E1
E1 = m•Cp•ΔT = 6 x 4.187x(42-20) = 6x4.187x22
Energy lost by hot water, E2:
E2 = X(CpΔT) = X x 4.187 x (75-42) =X x 4.187 x 33
So, since E1 = E2
6x4.187x22 = X x 4.187 x 33
X = 6x22/33 = 4.0kg
So the mass of the hot water added to the 6kg of cold water is 4.0kg
