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AP Physics 2 Videos 66 videos

AP Physics 2: 1.1 Waves
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AP Physics 2: 1.1 Waves. Find the light intensity.

AP Physics 2: 1.1 Properties of Objects and Systems
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AP Physics 2: 1.1 Properties of Objects and Systems. What is the magnitude and direction of the conventional current in this wire?

AP Physics 2: 1.5 Properties of Objects and Systems
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AP Physics 2: 1.5 Properties of Objects and Systems. According to the Bohr's model of the atom, which of the following are true?

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AP Physics 2: 2.4 Waves 4 Views


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Description:

AP Physics 2: 2.4 Waves. Where should Vicky place the object to project a silly image on her partner's forehead?

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Transcript

00:00

Thank you We sneak and here's your shmoop du jour

00:05

brought to you by lab partners Nothing's better than a

00:08

good lab partner and nothing's worse than a lab partner

00:10

who just sits there not participating just looking at his

00:13

phone and making us do all the work while he

00:16

plays candy crush Yeah that that were bitter ryan from

00:19

mrs anders glass Well during a classroom optics experiment bart

00:23

stares through a thin converging lens with a focal length

00:27

of two inches located ten inches away Vicky bart's lab

00:32

partner and friend wants to project a silly image onto

00:35

his forehead Where should vickie place the object and hear

00:39

the potential answers All right Okay well this is how

00:44

physics students cut it loose Bye Goofing around with optics

00:49

Yeah sure It might not be the most hilarious prank

00:51

in the world but you're worse at least nothing's exploding

00:54

like those chemistry All right well what we need to

00:56

be able to solve this is the thin lens equation

01:00

The thin lens question means that the reciprocal of the

01:03

focal length equals the reciprocal of the object Distance plus

01:06

the reciprocal of the image Distance We have the image

01:10

distance ten inches and the focal length Two inches We

01:14

just need to plug those numbers in and solve for

01:16

the object Distance Right Well crunching the numbers shows us

01:19

that the object needs to be placed two point five

01:21

inches from the lens Now since this is a converging

01:24

lens and not a mirror the object needs to be

01:27

on the opposite side of the lens from bart for

01:29

the image to be projected on bart's Cranium don't When

01:33

object and image distances are on opposite sides of a

01:36

lens the distances are positive So since we know the

01:41

object distance and on which side of lens the object

01:44

needs to be we know That the correct answer has

01:46

to be deep And remember there are worse things your

01:49

lab partner can do than project a goofy and john

01:52

your forehead After all that fire extinguisher is there for 00:01:55.825 --> [endTime] a reason Teo

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