You will now use Graphical Analysis to calculate the slope of the line. Choose Analyze from the menu. Select Automatic Curve Fit. Select the proper stock function from the list. (Hint: Your answers from question 1 should help you make the proper selection. Just below the graph you
will see the slope value. Remember that the symbol for slope is "M." When you choose OK to get back to the regular graph screen, you will see
a little box on the graph. This box also shows the slope value. (Remember that slope is 'm.")
If you are unable to use Graphical Analysis, you can also graph your data on paper to determine the slope. Hint: to determine the slope, use the
formula m = (y2 - yı) + (x2 - X1).
What is the numerical value of the slope of the line? Show your work.

As part of an industrial process, air as an ideal gas at 10 bar, 400k expands at steady state through a valve to a pressure of 4 bar. the mass flow rate of air is 0.5 kg/s. the air then passes through a heat exchanger where it is cooled to a temperature of 295k with negligible change in pressure. the valve can be modeled as a throttling process, and kinetic and potential energy effects can be neglected. (a) for a control volume enclosing the valve and heat exchanger and enough of the local surroundings that the heat transfer occurs at the ambient temperature of 295 k, determine the rate of entropy production, in kw/k. (b) if the expansion valve were replaced by an adiabatic turbine operating isentropically, what would be the entropy production? compare the results of parts (a) and (b) and discuss.

A20 cm long spring is attached to a wall. the spring stretches to a length of 22 cm when you pull on it with a force of 100 n. what is the spring constant

If frequency goes up, what happens to wavelength? does it get shorter or longer?