How much heat is required to raise the temperature of 0.25 kg of water from 35 c to 80 c?

A2 µc charge q1 and a 2 µc charge q2 are 0.3 m from the x-axis. a 4 µc charge q3 is 0.4 m from the y-axis. the distances d13 and d23 are 0.5 m. find the magnitude and direction of the resulting vector r. round your answer to the nearest tenth.

In the first law of thermodynamics, triangle e=q-w, what does q stand for

The air that we breath is made mostly of which gaseous molecule