Suppose you needed to build a raft to cross a fast-moving river. describe the physical and chemical properties of the raft that would be important to ensure your safety.

Give an example of a collision in real life. use the law of conservation of energy to describe the transfer of momentum. be sure and discuss the momentum before and after the collision occurs. you will need at least 3 sentences to thoroughly answer this question.

Which of the choices are parts of an atom? select all that apply. a.) compound b.) electron c.) neutron d.) molecule e.) photon f.) proton g.) element

Thermal radiation gets its name because