Sir wants to see if a new shower cleaner works better in removing soap dirt than his old cleaner.  he uses the new cleaner on one half of the shower tiles and his old cleaner on the other half.  can you identify the independent and dependent variables in this experiment.

If the force applied to an object remains constant, is more power needed for the object to move faster ? explain

Talia is manufacturing rolls of wire for hanging pictures. she needs a material that is so that it can easily be pulled into wire without breaking.

In a system with only a single force acting upon a body, what is the relationship between the change in kinetic energy and the work done by the force? answers: work is equal to the change in kinetic energy.work depends on the square of the change in potential energy.work is equal to the negative of the change in kinetic energy.work is equal to the square of the change in kinetic energy