The straight and longest portion of the Trans-Australian railway is 478 km and 193 m long of steel. The region experiences a temperature range of -23.0°C to
50.7°C. By how many meters will the railroad tracks expand or contract? Why is
it a good idea to segment tracks into small pieces?

According to newton’s first law of motion, which force is expected to cause a body to accelerate?

An engine undergoes a cycle as shown in the diagram. during a complete cycle the work done by the gas is 28.5×103 j and the energy transferred thermally out is 99.4×103 j. there are 1.5×1024 gas molecules and they have three active degrees of freedom. 6. (6 pts) during which process(es) is energy transferred thermally into the gas? a. 1→2 b. 2→3 c. 4→1 d. 1→2 and 4→1 e. none of the above

This is one type of line graph in which the independent variable is time plotted on the x axis and the dependent variable, also numerical, is plotted on the y axis.