When we view the sun's disk in visible light, we see less deeply into the sun near the limb than at the center of the disk because of interaction of the light with atoms of gas. What conclusion can be drawn from the observation that the sun appears less bright near the limb than it does at the disk center?

Apositive point charge q is fixed on a very large horizontal frictionless tabletop. a second positive point charge q is released from rest near the stationary charge and is free to move. which statement best describes the motion of q after it is released? assume q stays on the table

Awave is produced in a rope. the wave has a speed of 33 m/s and a frequency of 22 hz.

Ahanging spring stretches by 35.0 cm when an object of mass 450 g is hung on it at rest. in this situation, we define its position as x = 0. the object is pulled down an additional 18.0 cm and released from rest to oscillate without friction. what is its position x at a moment 84.4 s later? express your answer in cm.