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elaborate on the changes in molecular motion of particles as they change from solid to liquid to gas.
question 16 options:
as the phase changes occur, the freedom of motion of the particles increases.
as the phase changes occur, the freedom of motion of the particles decreases.
as the phase changes occur, the freedom of motion of the particles compresses.
as the phase changes occur, the freedom of motion of the particles is constant.

(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?