Three liquids are at temperatures of 10 ◦C, 19◦C, and 33◦C, respectively. Equal masses of the first two liquids are mixed, and the equilibrium temperature is 15◦C. Equal masses of the second and third are then mixed, and the equilibrium temperature is 28.9 ◦C. Find the equilibrium temperature when equal masses of the first and third are mixed. Answer in units of ◦C.

the motion of a pendulum is a classic example of mechanical energy conservation. a pendulum consists of a mass (known as a bob ) attached by a string to a pivot point. as the pendulum moves it sweeps out a circular arc, moving back and forth in a periodic fashion.

k2s for potassium sulphide

explanation:

wheres the pic

according to jean piaget, in what stage of cognitive development are children able to understand conservation task?

b. preoperational

just took it