How did harry potter break the inertia law in harry potter sorcerer's stone

Selma made a diagram to compare convection and radiation. which label belongs in the area marked x? must involve temperature differences between substances or objects only occurs when molecules are in direct contact involves the movement of fluids based on density differences can occur where there is little or no matter

Two balls, each with a mass of 0.5 kg, collide on a pool table. is the law of conservation of momentum satisfied in the collision? explain why or why not

Describe how the motion of a spring being pushed forward and backward is similar to the motion of air particles in a sound wave.