a straight rod is partially immersed in water of refractive index 1.33. Its submerged position appears to be inclined 45° with the surface when viewed vertically through air. What is the actual inclination of the rod?

Which lists the pairs of plates in order from least to greatest in terms of the work done to move the electron?

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.

Observations show that interstellar clouds can have almost any shape and