7. a light bulb connected to a 9-v battery has a current of 1.5 a flowing. a. find the resistance of the light bulb (in ohms) b. find the power drawn by the light bulb (in w)

Ascrew incorporates which other simple machine? lever wheel and axle inclined plane pulley

The speed of light in a material is 0.50 c. what is the critical angle of a light ray at the interface between the material and a vacuum?

Although longitudinal waves can travel through all media types what is the disadvantage of this type of wave transmission? a) he efficiency of he wave transmission is greatly diminished as the media becomes less dense b) the oscillation of one set of particles has a huge impact on neighboring particles c) particles become too close together as they bump into each other making it more likely to hit other particles down the line