The pump is powered by an electric motor that drives an impeller, or centrifugal pump. The impeller moves water, called drive water, from the well through a narrow orifice, or jet, mounted in the housing in front of the impeller.
If a = 23 and b = 45
a + b = ?
23 + 45 = 68
Answer:
D: m² (square meters, area)
Explanation:
Derived units are a combination of SI base units. m² is the only option that's a combination of base units (meters times meters).
