On a particle level, what happens when thermal conduction occurs within a
solid?

The slope of a velocity time graph over any interval of time gives the during that interval

A2k pendulum has a speed of 1 m/s at a height of 1/2 meter

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?