Ahard-boiled egg of mass 48.0 g moves on the end of a spring with force constant 25.0 n/m . the egg is released from rest at an initial displacement of 0.305 m . a damping force fx=−bvx acts on the egg, and the amplitude of the motion decreases to 0.113 m in a time of 4.70 s . calculate the magnitude of the damping constant b. b = kg/s

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.