What is the definition of conservation of energy

The graph describes the motion of an object. the object moves with from a to b. it from b to c. it moves with from c to d.

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.

Find the mass by adding the numbers from the three sliders