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?

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

Question 11 of 13 (1 point) jump to question: a stairway, ladder, or ramp must be present in excavations in which of the following situations? a. all trenches must have access/egress b. the trench is more than 15 feet wide but only 1 ½ feet deep c. the trench is more than 4 feet deep and the devices must be within 25 feet of all workers

When electrons are added to the outermost shell of a carbon atom, it forms--an anion that has a larger anion that has a smaller cation that has a larger cation that has a smaller radius.