An open system fosters the idea that two or more forces combined create an effect that is greater than the sum of their individual effects. This is known as .

Ameter stick is pivoted at the 0.50-m line. a 3.0-kg object is hung from the 0.15-m line. where should a 5.0-kg object be hung to achieve equilibrium (the meter stick oriented horizontal and motionless)?

Dao makes a table to identify the variables used in the equations for centripetal acceleration. what quantities belong in cells x and y?

What causes the development of most clouds and precipitation in the atmosphere?