Refer to the model below. A science student is camping with her family for one month at Stone Mountain Park. In a journal she records a model of the moon phases she observes. If she began recording the moon phases at position X, which sequence of Moon phase models could be seen by her during the 4-week period?

True or false when elements combine to form a mixture, the resulting chemical properties may be very different from those of the elements that make it.

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?

Consider a double atwood machine constructed as follows: a mass 4m is suspended from a string that passes over a massless pulley on frictionless bearings. the other end of this string supports a second similar pulley, over which passes a second string supporting a mass of 3m at one end and m at the other. using two suitable generalized coordinates, set up the lagrangian and use the lagrange equations to find the acceleration of the mass 4m when the system is released. explain why the top pulley rotates even though it carries equal weights on each side.