Think back to the "Skate Park" Lab and how the skater rolled back and forth on the ramp when there was no friction. After he rolled up and down the ramp a few times,

how did the potential energy compare to the total energy at the bottom of the

ramp? Make sure you explain in your response whether energy is conserved or not in

the system. Make a claim answering the question, give evidence to support your

a

claim, and provide reasoning for your evidence supporting the claim.

there is no correct list among the choices you've provided.

the list might look something like this:

-- baby human

-- piccolo

-- flute

-- soprano singer

-- trumpet

-- tenor singer

-- trombone

-- baritone singer

-- baritone horn

-- bass singer

-- tuba

since i had to make up the list myself, i made it easy on myself, and i didn't try to shuffle the string instruments and woodwinds into it too.

answerdmitry mendeleyev made a workable classification of the elements

a. vertically

explanation:

i tried it and took the test

if im wrong then we have different tests