A student uses red litmus paper to test the pH value of different solutions. Which would result in a color change of the litmus paper? Check all that apply.

A: soap
B: biodiesel
C: drain cleaner
D: antifreeze
E: vinegar

the independent variable, or the one that is intentionally manipulated is the speed.

answer would be letter choice (a),   a ball resting on a shelf. would be another example of potential energy   >   stored energy > not moving.

a ball spinning on a finger   >   kinetic energy > moving energy

a ball rolling on the ground   >   kinetic energy   > moving energy

a   ball flying through the air   > kinetic energy   >   moving energy

hope that                                         : )