A light bulb has a power output of 80 W and it has been left on for 90 seconds. How much work was done?

The particles of an ice cube at 0°c (represented by the blue circles) come in contact with the particles of juan’s hand at 37°c (represented by the orange circles). which diagram correctly represents the temperature of the two substances and the direction of heat flow?

Frank just graduated from eighth grade. assuming exactly four years from now he will graduate from high school how many seconds does he have until his high school graduation

Explain what will happen if decomposers were apsent from a forest ecoysystem.