The diagram shows a toy car on a track that is lying on the floor.
Toy Car on Track with Bumpers
Start
Select the boxes to identify the net force for each stage of the car's motion
Zero Net
Force
At rest
Begins to move forward
Moves at a constant
speed
Slows down

If an atom contains 11 protons in its nucleus, predict the element with the atomic number and electronic configuration. will the number of electrons remain the same during the chemical reaction in such an atom? explain.

In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2000 j? 1. write the equation 2.list out your known variables 3.plug the numbers into the equations 4.solve 5.write your solution statement that includes initial energy and final

If the chemical properties of a substance remain unchanged and appearance or shape of a substance changes it is called a ?