Read the hypothesis below.
hypothesis: if a steel surface is wet with water, then the friction will be reduced.

which question best matches this hypothesis?
a. how is water affected by the force of friction?
b. how will water affect the force of friction?
c. does water or steel have a greater frictional force?
d. what is the force of friction of water?

Which of these statements explains the difference between nuclear binding energy and the strong nuclear force ?

Under normal conditions, describe how increasing the temperatures effects the solubility of a typical salt

Consider the reduction reactions and their equilibrium constants. cu+(aq)+e−↽−−⇀cu(s)pb2+(aq)+2e−↽−−⇀pb(s)fe3+(aq)+3e−↽−−⇀fe(=6.2×108=4.0×10−5=9.3×10−3 cu + ( aq ) + e − ↽ − − ⇀ cu ( s ) k =6.2× 10 8 pb 2 + ( aq ) +2 e − ↽ − − ⇀ pb ( s ) k =4.0× 10 − 5 fe 3 + ( aq ) +3 e − ↽ − − ⇀ fe ( s ) k =9.3× 10 − 3 arrange these ions from strongest to weakest oxidizing agent.