Thanks for the video, really helped me. However, I have a question. During SONAR, won't the ultrasound give you the wrong depth every time because there are other objects in the ocean that it would reflect off of (fish, reefs, etc)
DrPhysicsA Is calculus included on the GCSE exams? I live in the US and usually calculus isn't until senior year of high school. You do such an excellent job of teaching that I think many students would benefit from calculus lectures. I have found out the hard way that all teachers are not equal, and that having a degree does not qualify someone as a real teacher; being a real teacher is a gift and you have it.
SaintWilliamIII I'm a GCSE student. Calculus has never appeared on any physics or maths specifications. Perhaps check higher exams called A Levels (they are exams which you take in your last two years of highschool to get into university [college], so kind of like your SATs I think?) Sorry for the one year late reply... I just thought I'd answer the question >.< I hope I was still helpful in some way
I assume that in the case of sonar or medical ultrasound you would have to know the velocity of sound relative to that medium and could not use the 340 m/s velocity of air.
Can you describe what resonance is and also its equation. I want to confirm wether both the definition and the equation correctly. Is the equation ( In= (2n-1) λ over 4 ) correct
Thanks for the video, really helped me. However, I have a question. During SONAR, won't the ultrasound give you the wrong depth every time because there are other objects in the ocean that it would reflect off of (fish, reefs, etc)
What produces ultrasound?
hey everyone +drphysicsa how do you know the amplitude of the sound wave
Thinking the same 🤧😢,Physics IGCSE exam in just 8 days
thanks for the lecture. will you be doing one on Infrasound?
Thanks. I have put up a video today which briefly touches on infra Sound at the end.
Thank you for the amazing lecture! I was wondering. Is there any chance that you'll make any calculus lecutres in the future? Have a good day.
Thanks. I usually assume that my viewers already understand the basics of calculus.
DrPhysicsA Is calculus included on the GCSE exams? I live in the US and usually calculus isn't until senior year of high school. You do such an excellent job of teaching that I think many students would benefit from calculus lectures. I have found out the hard way that all teachers are not equal, and that having a degree does not qualify someone as a real teacher; being a real teacher is a gift and you have it.
SaintWilliamIII I'm a GCSE student. Calculus has never appeared on any physics or maths specifications. Perhaps check higher exams called A Levels (they are exams which you take in your last two years of highschool to get into university [college], so kind of like your SATs I think?)
Sorry for the one year late reply... I just thought I'd answer the question >.< I hope I was still helpful in some way
I assume that in the case of sonar or medical ultrasound you would have to know the velocity of sound relative to that medium and could not use the 340 m/s velocity of air.
Yes.
Can you describe what resonance is and also its equation. I want to confirm wether both the definition and the equation correctly. Is the equation ( In= (2n-1) λ over 4 ) correct
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