Glaciers, weather, and water shape earth by a-metamorphosis b-erosion c-tectonics d-el niño

Arod of some material 0.20 m long elongates 0.20 mm on heating from 21 to 120°c. determine the value of the linear coefficient of thermal expansion [in (degrees c)^-1] for this material.

In the circuit shown below, with each bulb holding a resistance of 60 ohms, how many amps of current are flowing? express your number as a decimal.

How does an observation about an object differ from an inference about that object