A student used a stick to model isostatic rebound. The student bent the stick without breaking it and then let the stick go. In its final state, what does the stick represent in the student's model?

Sawyer is studying diffraction. he draws a diagram of a plane wave to show how light waves travel. which best describes sawyer’s error? the wave fronts should be perpendicular to the direction in which the waves move. the arrow showing the direction of movement of the waves should be pointing to the left. the arrow showing the direction of movement of the waves should be pointing downward. the wave fronts should be both parallel and perpendicular to the direction in which the waves move.

Which additional product balances the reaction h2so4 + 2naoh → na2so4 + 2h2o 2oh h2o2 h3o

Match each type of lever with the correct diagram. 1. first-class 2. third-class 3. second-class