Aspring required a force of 5.0 n to compress it 0.1 m. how much work is required to stretch the spring 0.4 m

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?

The process of a material going through a change of state from a gas to a liquid

Describe the three ray tracing steps used to identify an image for the given situation.