. After his boat runs out of gas, a boater considers dropping the motor into the water to create waves. Describe the resulting motion of the boat, and explain why the boater’s plan will not help him reach shore. Write two or three sentences to explain your reasoning.

Question

Vocaloid · Answer

Disclaimer: Had to look this one up, it has something to do with how dropping the motor into the water only causes transverse waves which would only move the boat vertically up and down with respect to the original location thus not moving the boater to shore

@rishavraj if you have a chance would you mind double checking this?

zarkam21 · Answer

@rishavraj

rishavraj · Answer

@Vocaloid  that seems correct. . . :)

Vocaloid · Answer

alright, thanks again ^_^

zarkam21 · Answer

attachment

rishavraj · Answer

http://www.phys.uconn.edu/~gibson/Notes/Section5_2/Sec5_2.htm

rishavraj · Answer

@zarkam21  read the first para... u will be able to draw it :)

Vocaloid · Answer

so when two waves interfere constructively their heights will be additive so the peaks/nodes will be the same, just the new wave will have twice the height

Vocaloid · Answer

|dw:1526612525238:dw|

Vocaloid · Answer

*twice the amplitude, really

something like that

Vocaloid · Answer

anyway, give it a shot and we'll give you some guidance if it's not quite there

zarkam21 · Answer

attachment

Vocaloid · Answer

hm, not a bad attempt, but the original wave only has one peak and one trough so the new wave should only have one peak + one trough

Vocaloid · Answer

|dw:1526612747402:dw|

Vocaloid · Answer

|dw:1526612753019:dw|

Vocaloid · Answer

yo you still there? not to rush you or anything jw if you had any other problems to do ^_^

zarkam21 · Answer

he sounds from a stage seem quieter in certain seats in the auditorium. Write one or two sentences to explain the wave interaction that is responsible for these quiet spots.

zarkam21 · Answer

he sounds from a stage seem quieter in certain seats in the auditorium. Write one or two sentences to explain the wave interaction that is responsible for these quiet spots.

Vocaloid · Answer

well volume is determined by amplitude - if the amplitude is decreasing from wave interactions is this constructive or destructive?

Vocaloid · Answer

well, if we look at our previous example, constructive interference makes a resulting wave with higher amplitude (in this case a louder sound) so it has to be the other one (destructive interference)

so if certain spots have bad sound volume these are likely locations where the waves interfere destructively, thus decreasing the amplitude of the resulting wave

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