Venus and Mercury do not experience seasons. Which of the following conclusions could explain this? A. Venus and Mercury have very small axial tilts.
B. Venus and Mercury are closer to the Sun.
C. Venus and Mercury rotate at very slow rates.
D. Venus and Mercury do not have oxygen in their atmosphere.
E. Venus and Mercury do not have weather.

The passage that directs air to the lungs is called a. diaphragm. b. larynx. c. bronchi. d. pharynx.

A14 kg rock starting from rest free falls through a distance of 5.0 m with no air resistance. find the momentum change of the rock caused by its fall and the resulting change in the magnitude of earths velocity. earth mass is 6.0 * 10^24 kg. show your work assuming the rock earth system is closed.

Which of the following best describes internal energy? a. the difference between the kinetic and potential energies of the particles in a system b. the sum of the kinetic and potential energies of the particles in a system c. the sum of the kinetic and thermal energies of the particles in a system d. the difference between the kinetic and thermal energies of the particles in a system