Question

Help please

Answer 1

9?

Answer 2

@Vocaloid

Answer 3

good, 9

Answer 4

C

Answer 5

@Shadow aren't all of these technically simple harmonic motion equations? :S

Answer 6

A

Answer 7

that's a good attempt but not quite, the ball doesn't repeat its motion exactly because the bounce height gets smaller each time

any other ideas?

Answer 8

which scenario involves the a series of repeated motions carried over regular intervals?

Answer 9

c

Answer 10

good

Answer 11

5

Answer 12

?

Answer 13

it's asking about the period not the amplitude

remember that the coefficient of x can be described with the variable b

so period = 2pi/b = 2pi/(pi/4) = ?

Answer 14

1/2

Answer 15

check your calculations again

2pi/(pi/4) = 2pi * (4/pi) = ?

Answer 16

8

Answer 17

yeah good ^^

Answer 18

it's a little blurry but it looks like b = 8pi so you would just calculate 2pi/(8pi)

Answer 19

it is d=4sin(8pi)

Answer 20

yeah, it's d = 4sin(8pi*t) making the coefficient b = 8pi

Answer 21

so i would calculate 2pi/8pi making it 0.25

Answer 22

good but the problem probably wants a fraction judging by the instructions so I'd say 1/4 instead

Answer 23

anyway I have volunteer work for the next few hours, I'll try to be online tonight though