Which of the following objects is in equilibrium : an object that moves at constant acceleration, an object that moves at constant velocity

An object that moves at constant velocity

Explanation:

For an object to be in equilibrium, according to Newton's first law, the object must maintain its state of rest or movement without a resulting force acting on the object.

In this case the object in both options is in motion, but the only one in which that movement is constant and without resulting forces is when it moves at constant speed, so it is in equilibrium.

On the other hand, when it moves with at constant acceleration, by Newton's second law ( is the mass and is acceleration), if there is an acceleration there will be a resultant force so the object is not in equilibrium.

The answer is an object that moves at constant velocity is in equilibrium.

its c its is a mixture of gases

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.