How did the orange dot move in relation to the movement of the wave? The orange dot moved in the same direction as the wave.
The orange dot moved in a direction perpendicular to wave's movement.
The orange dot moved in the opposite direction of the wave.
The orange dot did not really move.

lets see ummm Somebody once told me the world is gonna roll me

I ain't the sharpest tool in the shed

She was looking kind of dumb with her finger and her thumb

In the shape of an "L" on her forehead

Well the years start coming and they don't stop coming

Fed to the rules and I hit the ground running

Didn't make sense not to live for fun

Your brain gets smart but your head gets dumb

So much to do, so much to see

So what's wrong with taking the back streets?

You'll never know if you don't go

You'll never shine if you don't glow

Hey now, you're an all-star, get your game on, go play

Hey now, you're a rock star, get the show on, get paid

And all that glitters is gold

Only shooting stars break the mold

It's a cool place and they say it gets colder

You're bundled up now, wait till you get older

But the meteor men beg to differ

Judging by the hole in the satellite picture

The ice we skate is getting pretty thin

The water's getting warm so you might as well swim

My world's on fire, how about yours?

That's the way I like it and I never get bored

Hey now, you're an all-star, get your game on, go play

Hey now, you're a rock star, get the show on, get paid

All that glitters is gold

Only shooting stars break the mold

Hey now, you're an all-star, get your game on, go play

Hey now, you're a rock star, get the show, on get paid

And all that glitters is gold

Only shooting stars

Somebody once asked could I spare some change for gas?

I need to get myself away from this place

I said yep what a concept

I could use a little fuel myself

And we could all use a little change

Well, the years start coming and they don't stop coming

Fed to the rules and I hit the ground running

Didn't make sense not to live for fun

Your brain gets smart but your head gets dumb

So much to do, so much to see

So what's wrong with taking the back streets?

You'll never know if you don't go (go!)

You'll never shine if you don't glow

Hey now, you're an all-star, get your game on, go play

Hey now, you're a rock star, get the show on, get paid

And all that glitters is gold

Only shooting stars break the mold

And all that glitters is gold

Only shooting stars break the mold

Explanation:

explanation:

v=uf/(u-f)

= 5.-10/(5+10) convex lens has negative focal length