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?

Aloop of wire is in a magnetic field such that its axis is parallel with the field direction. which of the following would result in an induced emf in the loop? choose all that apply. a loop of wire is in a magnetic field such that its axis is parallel with the field direction. which of the following would result in an induced emf in the loop? choose all that apply. moving the loop outside of the magnetic field region. spin the loop such that its axis does not consistently line up with the magnetic field direction. change the magnitude of the magnetic field. change the diameter of the loop