Answer:
3.) 463 J/g
Explanation:
Heat given by the fuel is used to increase the temperature of the water
so it is given as
here we will have
m = 250 g
now we also know that
so we have
so 3.5 g fuel gives above energy
so per gram of fuel will have total energy given as
When rain falls on the land, it either seeps into the ground or becomes runoff, which flows downhill into rivers and lakes.
Before positive psychology, the main focus was mostly pathology, that is, studying various psychological issues and sometimes finding ways to treat them, or sometimes not and just studying them for the sake of studying them and noting their occurrence.
Explanation:
Below is an attachment containing the solution.
First one is D and Second one is B
