What kind of simple machine is a swing

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

Consider two regions of space containing a static electric field, region a and region b. in region a the equipotential lines are more closely spaced than those in region b. what can be said about the relative strength of the electric field in the two regions? a) the electric field in region a is stronger th

What are known as the properties of substances that describe a substance et does not change that substances?