What does a negative velocity indicate about an object's motion? Plz help

The variables for this experiment include mass, volume and the materials in the various balls, as well as their densities. in part iii, you will be investigating the questionable baseball. use the drop-down menus to complete the sentences and identify the independent and dependent variables. in part iii, the independent variable, the one that is intentionally manipulated, is . in part iii, the dependent variable, the one that you measure the response in, is

The long handle on a rake is a(n) a. lever b. screw c. wedge d. inclined plane

If a simple machine reduces the strength of a force, what must be increased?