A watermelon is 4kg a. State the mass of the watermelon.

b. Calculate the weight of the watermelon.

c. If this measurement is repeated on the moon, Suggest what will
happen to the reading on the balance.

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.

wavelegth as in spectrum red oygbiv

energy can be converted from one form to another, but it cannot be created or destroyed in ordinary chemical or physical means. do not understand what you are asking but hope this