The monomer used as the building block in polyethylene is? ethene, ethane, monoethane, amino acids?

Many machines- including inclined planes such as ramps- increase the strength of the force put into the machine but decrease the distance over which the force is applied.

Why is it important always to use horizontal bars in unit fractions when performing unit conversions?

An electric clothes dryer has a resistance of 8 ohms. it draws 30 a of current. what is the voltage, in volts, of the wall outlet that it is plugged into?