When you add heat to wood it burns. the cellulose that makes up wood is converted to carbon dioxide, water vapor, and ash. this transfer of energy caused a change to the of wood.
chemical properties
physical properties
internal properties

(2) (a) you have a simple circuit that consists of only a battery (δvbat=1.5v) and two resistors with resistance r1=10ω and r2=5ω, connected in series with each other. what is the current running through the battery? (b) you re-arrange your circuit so now r2 is attached in parallel to r1 rather than in series. what is the current running through the battery? (c) you add an additional resistor r3=7ω on the same branch as r2. what is the current running through the battery? (d) what is the power dissipated in r3?

An object in mechanical equilibrium is an object

In which of these cases are the two wave points considered to be in phase with each other?