A minivan goes from rest to 55 km/h in 12 seconds. Calculate its acceleration.

1.what is where an object is located 2. what is how fast an objects speed is changing 3. what is how fast an object is moving

Consider an insulating crystal, made up of layers of atoms. what form would you expect the temperature dependence of the phonon heat capacity to approach at extremely low temperatures if the interlayer coupling is i)very strong (rigid coupling), and ii) very weak. explain.

What component of earth’s atmosphere exists entirely as a result of photosynthesis?