Gives a pictorial indication of how far and fast an object has moved
a. speed
b. velocity
c. frame of reference

5g of ammonium nitrate was dissolved in 60g of water in an insulated container. the temperature at the start of the reaction was 23.0°c and at the end it was 19.0°c. calculate the energy absorbed by the reaction.

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

What quantity do units represent in value