A certain circuit includes a voltage source VS, a fixed resistor R1, and a potentiometer Rv all in parallel. Help me study for my Physics class. I’m stuck and don’t understand.
(a) Draw the circuit
(b) Calculate the output voltage of the potentiometer if VS = 10 V, R1 = 1 kohm, Rv = 1 kohm, and the pot is set at its midpoint.

Science and technology are interdependent. advances in one lead to advances in the other. give an example of this phenomenon.

6–43 a food department is kept at 2128c by a refrigerator in an environment at 308c. the total heat gain to the food department is estimated to be 3300 kj/h and the heat rejection in the condenser is 4800 kj/h. determine the power input to the compressor, in kw and the cop of the refrigerator.

Why is rain likely when warm, moisture-laden air meets cold air? a) the lighter warm air will rise and cool down, causing condensation and rain. b) the cold air moves faster and pushes the warm air away, causing condensation and rain. c) the moisture in the warm air condenses on contact with the cold air, causing rain to fall. d) the cold air mixes with the warm air, reducing its temperature causing moisture to condense.