Melting ice is an example of which of the following?
question 1 options:
endothermic reaction
exothermic reaction
isothermic reaction
chemical reaction

Design techniques and materials that reduce the negative environmental impact of a structure are referred to as

Precision can be defined as the o exact center of a data set. o reproducibility of a measured value. o correlation between two variables that are measured in a data set agreement between a measured value and an accepted value.

In a heat of an engine, if 700 j enters the system, and the piston does 400 j of work what is the final internal (thermal) energy of the system if the initial energy is 1,500 j