A train made up of a locomotive and two cars of mass m each moves on two horizontal rectilinear rails under the action of force of traction f developed by the locomotive

Match the following vocabulary terms to their definitions. 1. amount of energy required to change 1 gram of material from the solid to the liquid state at its melting point 2. a measure of the kinetic energy of the particles of a substance 3. the amount of heat energy required to raise the temperature of 1 gram of liquid water from 14.5°c to 15.5°c 4. amount of energy required to change 1 gram of material from the liquid to the gaseous state at its boiling point 5. the amount of energy required to change 1 gram of a substance 1°c a. temperature b. latent heat of vaporization c. latent heat of fusion d. calorie e. specific heat

Stoichiometry- i need with 14 and 15! an explanation would be appreciated!

When scientists are ready to publish the results of their experimentation, why is it important for them to include a description of the procedures they used?