An ideal spring, with spring constant k, is attached to a particle of charge q and mass m in such a way that it can only move along the z-axis. the spring's equilibrium is used to set i= 0. the system is then put in an electric field e= e . 1. where would the new equilibrium be? 2. if the system was at rest and equilibrium initially, what is the maximum speed of the system after the electric field is turned on? 3. under the same conditions what is the maximum distance from the origin the mass can reach?

Janelle made a hypothesis bout the uneven temperatures inside her house during winter. she believes that 50% of the ducts are blocked and she plans to investigate. if she wants to prove her hypothesis using scientific processes what should she do next?

When temperature of a substance increases, of its particles increase resulting in more between particles. real world applications of thermal expansion absolute zero (-273 degrees c) is the lowest possible temperature on the kelvin scale. it is a measure of where a substance has no kinetic energy. heat is a process of the . energy flows spontaneously from a object to a until equilibrium is reached. heat is measured in heat is transferred throughis a method of heat transfer that occurs between particles of matter that are in direct contact with each other. are poor conductors that impede / reduce the rate of heat transfer. is a method of heat transfer that occurs in fluids (non-solids) by means of currents. real world application of convectiona method of heat transfer through electromagnetic waves. when energy moves from one object to another inside a closed system, no energy is or in the system in the transaction. systems will spontaneously move to a state of organized energy or high disorder over time called

Mechanical energy is when the amount of kinetic and potential energies added together remains the same. conserved created lost