Which is true of a kilogram of feathers and a kilogram of bricks? a. they have the same mass b. they have the same volume c. the bricks are less dense d. the feathers are more dense

What is the acceleration of a spaceship that is initially at rest and then speeds up to 220 m/s in 20 seconds

An object's buoyant force and weight mean the same thing. a. trueb. false

Since the energy was not raising the temperature of the water during these segments, what was the energy used to do instead? your answer must include an explanation of what is happening to the molecules.