The sidewalk in front of a house has been severely cracked by the roots of the big oak tree in the front yard. the area of the cracked sidewalk weighs 200 n, and the sidewalk was moved 0.15 m. using the formula w=f x d, calculate the amount of work done by the tree roots that moved the sidewalk.

Identify one disadvantage to each of the following models of electron configuration: -dot structures -arrow and line diagrams -written electron configurations type in your answer below. (answer) -dot structures do not show the distribution of electrons in orbitals and take up a lot of space. -arrow and line diagrams take up a lot of space and make it difficult to count electrons. -written configurations make it easy to lose count of electrons and do not show the distribution of electrons in orbitals.