Question

Need urgent help, I am stuck on a question: http://snag.gy/jP76g.jpg

Answer 1

how are you stuck?

Answer 2

The periods ><. I can see the altitudes.

Answer 3

you can see the periods too, define what a period is

Answer 4

also, what are you claiming as the altitudes?

Answer 5

time, and somewhat it looks like 4.5 on the first but ....idk

Answer 6

claiming as **amplitudes ...

Answer 7

first one 3, second : 2 right ?

Answer 8

time is one way in which we can measure a period

period is the shortest length required for a single copy of the wave to form.

and 2 is the amplitude of the second, but i disagree with the first.

Answer 9

first one, we have a clear pattern, that has a high point at 0,5,10

second one, we have a clear pattern, that has a high point at what are they?

Answer 10

i believe the first ones amplitude is sloppy. its assuming that half the range is an amplitude, but thats not accurate.

Answer 11

agreed..isn't there a formula to find this the periods..idk

Answer 12

not in all cases, its best as a visual.

Answer 13

do we agree that the pattern repeats, and that it is the same from 0 to 5, as it is from 5 to 10?

Answer 14

what are the intervals in the second one that shows us a repetition of the waves pattern?

Answer 15

Intervals were not given nor was I told to solve for them so have have no clue >< sorry. And I agree.

Answer 16

intervals ARE given, thats right there on the graphs.

Answer 17

Oh my bad, I was thinking you mean shifts

Answer 18

Pi/2, pi, 3pi/2, 2pi, 5pi

Answer 19

*5pi/2

Answer 20

the first one ... it repeats itself in what shortest distance?

Answer 21

5pi ??

Answer 22

there are no pis in there, but yeah, 0 to 5 is a length of 5

and for the second?

Answer 23

these are simple only because they start a cycle at 0, sometmes they wont be so nice.

Answer 24

ah okay(I'm just going off that formula for period), and second= pi/2?, and Ik ><

Answer 25

pi/2 is only half way ...

the graph is not 'the same' on the interval 0 to pi.2 as it is from pi/2 to pi

so we CANT have a period of pi/2 becasue the pattern is NOT repeating afterwards.

Answer 26

Oh okay so it would be pi to make it full

Answer 27

yes, it makes a repetition within a period of pi.

if a faucet is dripping once every 3 seconds, whats the period?

if a clown is falling once every 4 minutes, whats the period?

if a dog is barking once every second, whats the period?

if the tides comes in once every 9 hours, whats the period?

a period is the shortest interval it takes for a phenomenea to start repeating itself all over again.

Answer 28

oh okay and 3, 4, 1, 9 ?

Answer 29

trig function have nice formulas, other things do not

Answer 30

lol, yeah those would be the periods of them

Answer 31

Yay I learned Periods and altitudes! Thank you ^^ kindly.

Answer 32

amplitudes ....

so whats our solutions?

Answer 33

lol thx for the correction and 1. a:3 ,p:5 2.a:2, p: pi

Answer 34

your amplitude on the first is mistaken.

-2 to 3 is a distance of 5, and assuming they are going with range/2 ...

5/2 is not 3

Answer 35

so the last option on both seems fair to me

Answer 36

ah, okay Gotcha . Thank you you kindly for teaching me and your patience .

Answer 37

good luck :)

Answer 38

Thx ^^