When a 5.00-g sample of rbbr is dissolved in water in a calorimeter that has a total heat capacity of 1.655 kj·k–1, the temperature decreases by 0.400 k. calculate the molar heat of solution of rbbr?

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?