Maurice directs a beam of light on a sheet of glass at an angle of 51°. what is the angle of refraction in the glass? the refractive index of glass is 1.46.

Which of the following quantities are units of momentum? (there could be more than one correct choice.) a)n m b) kg s/m c) kg m/'s d)n-s 12 points] e) kg m2/s2

A26 cm object is 18 cm in front of a plane mirror. a ray of light strikes the object and is reflected off the mirror at a 42-degree angle. what is the angle of reflection? degrees what type of image is formed? what is the size of the image? cm

What is the weight of a feather (mass = 0.0001 kg) that floats through earth's and the moon's atmospheres?