Scientists can use spectral analysis of stars to determine which of the following? select all that apply. surface temperature of the star elements on the surface of the star elements in the core of the star core temperature of stars

You have a resistor and a capacitor of unknown values. first, you charge the capacitor and discharge it through the resistor. by monitoring the capacitor voltage on an oscilloscope, you see that the voltage decays to half its initial value in 2.70 miss . you then use the resistor and capacitor to make a low-pass filter. what is the crossover frequency fc?

What is the freezing point of radiator fluid that is 50% antifreeze by mass? kf for water is 1.86 ∘c/m.

If the specific heat of a metal is 0.850 j/g °c, what is its atomic weight?