Which is geographical term related to the ”piece of sub-continental land that is surrounded by water”? A Apiece of land that is completely surrounded by water on all sides is…
Compare the operation of a photovoltaic solar cell with that of a photoconductive cell. The correct answer and explanation is : A photovoltaic (PV) solar cell and a photoconductive cell…
How are reed switch sensors actuated? The correct answer and explanation is : Reed switch sensors are actuated by the presence of a magnetic field. These sensors are composed of…
Outline the method used to actuate inductive and capacitive proximity sensors. The correct answer and explanation is : Inductive and capacitive proximity sensors are both types of non-contact sensors used…
Capacitor proximity sensors a) are actuated by both conductive and nonconductive materials. b) are actuated by conductive materials only. c) produce an electromagnetic field. d) have a long sensing range.…
Calculate the molarity of solution made by dissolving 20.6 grams of sodium sulfate, Na2SO4, in enough water to form exactly 750 mL of solution. The correct answer and explanation is…
How many grams of potassium permanganate, KMnO4, are present in 125 mL of a 0.0850 M solution? The correct answer and explanation is : To find the mass of potassium…
Assuming elasticity is reported in absolute value, a measured elasticity of less than one implies: A. the good is elastic. B. the good is inelastic. C. the good is unitary…
What chemical interaction is responsible for the dark color? The correct answer and explanation is : The dark color of many materials, particularly those that exhibit a rich or deep…
What factors affect the rate of any given reaction? The correct answer and explanation is : The rate of a chemical reaction is influenced by several key factors: Each of…
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