This is JUNNEL, not mark. :)

HELLO HELLO HELLO it's Junnel :) the one annnnd only, using Mr. Aquino's account due to some difficulties with my own .HAVE to scribe for today's class. It's okay though, we didn't really do much today anyways.

Firstly, we started off with watching the video that we watch every once in awhile. This time we continued off with learning about "Interference" for today's topic.

Secondly, Ms. Kozoriz gave us a worksheet that we did together in class.

ANSWERS (INTERFERENCE EXERCISES):
NUMERO UNO!

A) Draw the line showing the third nodal line to the left of the perpendicular bisector.

B) It is CONSTRUCTIVE

C) I didn't get this answer, but from what i heard it was either FIVE or TEN.

D) Determine the wavelength

PS1 = 12

PS2 = 9.0

PnS1 - PnS2 = (n-1/2)λ

(12cm)(9cm) = (2 - 1/2)λ

(3/2)(3cm) = (3/2)λ

6/3 = λ

ANSWER: 2cm

E) What is the frequency?

v= 5.0 cm/s

λ=2cm

f= v/λ = 5cm/s /2cm

f = 2.35hz

SECOND QUESTION!

A) What is the wavelength?

22cm - 17.5 cm = 1/2λ

(2/1)4.5cm = 1/2λ(2/1)

9cm = λ

B) What is the speed?

v = fλ

v =(6.5Hz)9cm

v = 58.5 cm/s

LAST QUESTION!

A) I don't know what happened to my picture, it wouldn't upload :(

B) It is DESTRUCTIVE

C) It is on the FOURTH LINE

D) What is the distance?

=6λ(2.2cm/1λ)

=13.2

That's all we pretty much did in class. I guess .. I shall see you guys in class. By the way next scribe is Mr. ANTHONY LY! MUHAHA just kidding :) yeah but your our scribe! DON'T FALL ASLEEP! :P