Friday 10/5 Lecture


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Mariam Baghdasaryan 4F
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Friday 10/5 Lecture

Postby Mariam Baghdasaryan 4F » Wed Oct 17, 2018 9:46 pm

Properties of Light: Friday 10/5 Lecture: When Professor Lavelle wrote v=m*s^-1 on the board was he referring to velocity? In my notebook, I wrote v as frequency, but I don't think that makes sense.

Isabel Bellon 4F
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Joined: Fri Sep 28, 2018 12:27 am

Re: Friday 10/5 Lecture

Postby Isabel Bellon 4F » Wed Oct 17, 2018 10:10 pm

I believe so. Unit for velocity is m/s or m*s^-1

Brian Chhoy 4I
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Joined: Fri Sep 28, 2018 12:16 am

Re: Friday 10/5 Lecture

Postby Brian Chhoy 4I » Thu Oct 18, 2018 1:14 pm

keep in mind that v= velocity, and that = frequency(curly v). But yes in that case v is velocity

Linh Vo 2J
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Joined: Sat Apr 28, 2018 3:00 am

Re: Friday 10/5 Lecture

Postby Linh Vo 2J » Thu Oct 18, 2018 8:43 pm

I would like to add on that v in that case would be velocity because of the units correlation. However, you can also determine if it's velocity or frequency by the way it's written. v is often straight, while curly v represents frequency and often will use Hz or Hertz as units.

g orloff 1J
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Joined: Fri Sep 28, 2018 12:16 am

Re: Friday 10/5 Lecture

Postby g orloff 1J » Thu Oct 18, 2018 9:30 pm

just remeber the difference between v for velocity and curly v for frequency.

Harshita Talkad 4L
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Joined: Fri Sep 28, 2018 12:16 am

Re: Friday 10/5 Lecture

Postby Harshita Talkad 4L » Fri Oct 19, 2018 1:06 pm

The greek letter nu is the curly v that represents frequency (in Hertz or s^-1), while the regular v represents velocity (in m/s or m*s^-1).

Minsub Lee 3E
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Joined: Fri Sep 28, 2018 12:25 am

Re: Friday 10/5 Lecture

Postby Minsub Lee 3E » Fri Oct 19, 2018 1:11 pm

Just a general tip is to remember the formulas and what you're trying to solve for. If you have to solve for kinetic energy, then you know you have to use velocity in the formula Kinetic Energy = 1/2mv^2

DavidEcheverri3J
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Joined: Fri Sep 28, 2018 12:26 am

Re: Friday 10/5 Lecture

Postby DavidEcheverri3J » Fri Oct 19, 2018 1:14 pm

Also, when measuring a photon's energy, you are dealing with nu (Hz)


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