(c) She returned home by the same path. The total time to leave home, travel to the university, and return home was 7 h 30 min. What were her average speed and velocity for the entire trip

Argon, neon, and xenon are examples of

You've already seen the value of 9.8 in this lesson. what's this value called? what quantity does it represent?

When the displacement of a mass on a spring is 12a the half of the amplitude, what fraction of the mechanical energy is kinetic energy? at what displacement, as a fraction of a, is the mechanical energy half kinetic and half potential?