Aceiling fan has 5-inch blades (so the radius of the circular fan is inches). suppose the fan turns at a rate of 2 revolutions per minute. (a) find the angular speed of the fan in radians per minute. (b) find the linear speed of the tip of a blade in inches per minute.

What are similarities and differences of reflection, refraction, diffraction and absorption?

What object a collides with object b and bounces back its final momentum is?

Which statement is true if the refractive index of medium a is greater than that of medium b? a. total internal reflection is possible when light travels from air to medium b to medium a. b. total internal reflection is possible when light travels from medium a to medium b. c. total internal reflection is possible when light travels from medium b to medium a. d. total internal reflection is possible when light travels from air to medium a. e. total internal reflection is possible when light travels from air to medium b.