Which of these explanations is describing the law of inertia?" The seat belt must apply more force to stop a child with more mass than a child with
less mass.
If the car stops suddenly, the seat belt and car seat help overcome the inertia of the
child so the child doesn't keep moving and get injured.
When the seat belt pushes on the child, the child pushes back on the seat belt
None of these are examples of the law of inertia

Asimply means that over time there was some sort of change.

The energy released by a chemical reaction can be measured using a calorimeter. when barium hydroxide octahydrate crystals are reacted with dry ammonium chloride inside of a coffee cup calorimeter, the temperature of the 18.00 g of water in the calorimeter decreases from 30.0°c to 8.0°c. the equation for calculating energy absorbed or released by a reaction is: where q is the energy released or absorbed, m is the mass of water in the calorimeter, cp is the specific heat of water, and δt is the observed temperature change. if the specific heat of liquid water is 4.19 j/g·°c, how much energy was absorbed by the reaction?

Occurs when an energy source transfers heat directly to another subject space; an example would be an object becoming warm by sitting in the sunshine