1. A brass rod 1.020 m long expands 3.0 mm when it is heated. Find the temperature change.
2. The road bed on a bridge 500.0 ft long is made of concrete. What allowance is needed for temperatures of – 40°F in winter and 140°F in summer?
3. An aluminum plug has a diameter of 10.003 cm at 40.0°C. At what temperature will it fit precisely into a hole of constant diameter 10.000 cm?
4. The diameter of a steel drill at 45°F is 0.750 in. Find its diameter at 375°F.