What happens to the sun as it transitions between a main sequence star and a white dwarf?

Your town is considering building a biodiesel power plant describe at least two advantages and two disadvantages

What are the similarities & differences between a thermistor and a light dependent resistor in physics?

Four point charges each having charge q are located at the corners of a square having sides of length a. find symbolic expressions for the following. (a) the total electric potential at the center of the square due to the four charges (use any variable or symbol stated above along with the following as necessary: ke.) vtotal= (b) the work required to bring a fifth charge p from infinity to the center of the square (use any variable or symbol stated above along with the following as necessary: w=