John drives at 28 m/s for 2800 m. then stops and rests for 300 s. then drives at 25 m/s for 1100 m

Which of the following is not a part of the respiratory system? a. pharynx b. trachea c. pancreas d. larynx

The atoms in a nickel crystal vibrate as harmonic oscillators with an angular frequency of 2.3 × 1013 rad/s. the mass of a nickel atom is 9.75 × 10-26 kg. what is the difference in energy between adjacent vibrational energy levels of nickel? (h = 6.626 × 10-34 j • s, , 1 ev = 1.60 × 10-19 j)

Explain why you think this diagram shows what happened to the carbon in the biodome.