A skateboarder traveling at 7. 0 meters per second rolls to a stop at the top of a ramp in 3. 0 seconds. What is the skateboarder’s acceleration? acceleration=[acceleration]m/s2

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.

Calculate the number of kilojoules to warm 125 g of iron from 23.5°c to 78.0°c.

Apush or pull that moves or changes and object when to objects touch