Collisions: Crash Course Physics #10
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Date: 2022-04-04
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Comments and reviews: 10
SupersackboyWTF
3: 18 That isn't quite true.
-For this to be a true elastic collision all of the kinetic energy from the white ball would have to be transferred to the red ball. -
For the collision to be elastic, the white ball doesn't necessarily have to transfer all it's kinetic energy to the red and come to a complete stop. The white ball can absolutely still have kinetic energy after the collision so long as the total energy of the system (the sum of the kinetic energies in each ball) is equal to the kinetic energy of the white ball before the collision. True, if the white ball transfers all of it's kinetic energy to the red, the collision is elastic. However, this does not have to be the case for ALL elastic collisions in this scenario.
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3: 18 That isn't quite true.
-For this to be a true elastic collision all of the kinetic energy from the white ball would have to be transferred to the red ball. -
For the collision to be elastic, the white ball doesn't necessarily have to transfer all it's kinetic energy to the red and come to a complete stop. The white ball can absolutely still have kinetic energy after the collision so long as the total energy of the system (the sum of the kinetic energies in each ball) is equal to the kinetic energy of the white ball before the collision. True, if the white ball transfers all of it's kinetic energy to the red, the collision is elastic. However, this does not have to be the case for ALL elastic collisions in this scenario.
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Victor
Dear Madam,
There is a question which is iching my taughts since many days, that why speed of sound is constant? Even though sound propagate by means of elastic collisions between molecules, speed of sound should depend upon the speed of molecules near the source of sound. Yes I have heard it already that molecule speed is directly proportion with the increase in pressure so the bulks module remains constant and hence the formula holds. But why then same phenomena is not observed in collision of two identical elastic balls, were the velocity of second ball depends upon the velocity of the first ball and hence the velocity of propagation of this collision also depended on the velocity of first.
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Dear Madam,
There is a question which is iching my taughts since many days, that why speed of sound is constant? Even though sound propagate by means of elastic collisions between molecules, speed of sound should depend upon the speed of molecules near the source of sound. Yes I have heard it already that molecule speed is directly proportion with the increase in pressure so the bulks module remains constant and hence the formula holds. But why then same phenomena is not observed in collision of two identical elastic balls, were the velocity of second ball depends upon the velocity of the first ball and hence the velocity of propagation of this collision also depended on the velocity of first.
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nocoin
Technically, cue balls weigh a half an ounce more than the rest of the billiard balls so in order to stop a cue ball in its tracks, other forces would have to come into play. It's pretty good practice to hit a cue just below center to create a backspin which adds a little more friction to the equation, preventing the cue ball from following the 8-ball in causing you to lose that game where you ran the table on Mick. You won on technicality Mick! I'm still better than you!
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Technically, cue balls weigh a half an ounce more than the rest of the billiard balls so in order to stop a cue ball in its tracks, other forces would have to come into play. It's pretty good practice to hit a cue just below center to create a backspin which adds a little more friction to the equation, preventing the cue ball from following the 8-ball in causing you to lose that game where you ran the table on Mick. You won on technicality Mick! I'm still better than you!
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Dennis
The ball equation on when the ball hits the wall and changes its force in half a second. The equation itself was correct but the answer is 3. 125. This is important for people taking the AP Physics C test, for they need you to round to the nearest 3 decimals.
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The ball equation on when the ball hits the wall and changes its force in half a second. The equation itself was correct but the answer is 3. 125. This is important for people taking the AP Physics C test, for they need you to round to the nearest 3 decimals.
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-whoosh-
Gah! I'm so confusedddd! I'm supposed to know all this up till impulse in this video for my physic Benchmark, but I don't! And I got none of this! ---------- imma fail dis test. Thanks for being here and helping those who DO get this -
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Gah! I'm so confusedddd! I'm supposed to know all this up till impulse in this video for my physic Benchmark, but I don't! And I got none of this! ---------- imma fail dis test. Thanks for being here and helping those who DO get this -
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education
me: im going to read my barron's book for physics
me instead: watches physics crash course while debating making brownies
update: i made the brownies and will be giving them to my classmates tomorrow
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me: im going to read my barron's book for physics
me instead: watches physics crash course while debating making brownies
update: i made the brownies and will be giving them to my classmates tomorrow
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val
how is it that i can have a teacher tell me something for an entire semester but won't understand it until i watch a 10 minute crash course video? i'm killing this physics final today!
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how is it that i can have a teacher tell me something for an entire semester but won't understand it until i watch a 10 minute crash course video? i'm killing this physics final today!
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Shahnaz
thank you! thank you for helping me to find the joy of learning this! (instead of just memorizing useless formulas that I don't get where did those derive from)
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thank you! thank you for helping me to find the joy of learning this! (instead of just memorizing useless formulas that I don't get where did those derive from)
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Suf
Who came here after watching -Demonstrations in Physics- by Professor Julius Sumner Miller and can't stop laughing?
Like if you did the same or maybe reply.
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Who came here after watching -Demonstrations in Physics- by Professor Julius Sumner Miller and can't stop laughing?
Like if you did the same or maybe reply.
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Stephen
I was hoping that it would be my favorite narrator when clicking this on the video. Luckily it was, which means my day is off to a good start
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I was hoping that it would be my favorite narrator when clicking this on the video. Luckily it was, which means my day is off to a good start
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