1. Does it make a difference how close the water is to the paper? 2. Does it make a difference if the jar is square or round? What about the size of the jar or glass?
3. Draw a diagram of what you think is happening to the light rays
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The diagram shows four locations in the electric field of a positive point charge m. at which location is the electric potential the greatest.

Can you match these to the correct definition

Two loudspeakers, 5.5 m apart and facing each other, play identical sounds of the same frequency. you stand halfway between them, where there is a maximum of sound intensity. moving from this point toward one of the speakers, you encounter a minimum of sound intensity when you have moved 0.33 m . assume the speed of sound is 340 m/s. part a) what is the frequency of the sound? part b) if the frequency is then increased while you remain 0.21 m from the center, what is the first frequency for which that location will be a maximum of sound intensity? express your answer to two significant figures and include the appropriate units.