Two containers, each holding a different gas, are brought into thermal contact. The gas atoms in container X have twice the mass and half the average speed of the gas atoms in container Y. Which of the following best describes the energy transfer by thermal conduction, if any, between the two containers?
a) There is a net energy transfer from container X to container Y
b) There is a net energy transfer from container Y to container X
c) There is no net energy transfer between the containers, because no atoms move between them
d) There is no net energy transfer between the containers, because energy is transferred at approximately equal rates in each direction

Astudent is performing an experiment comparing sound and light waves. the student gathers the following data. what conclusion does the student most likely make based on this data? light waves always travel the same speed; however, the speed of sound is determined by the medium that it travels through. all sound waves always have the same energy, so the temperature of the medium does not affect wave speed. light needs to vibrate particles, so it travels fastest in tightly packed solids, while sound does not need a medium, so it travels fastest in a gas. tightly packed particles in solids slow down the light waves; however, sound waves make particles bounce into each other, so they travel faster in solids.

Why are graphs useful when interpreting data

Marcella is a four-year-old girl who is a victim of emotional child abuse. based on the child and family services improvement and innovation act of 2011, which action should the government take for marcella? a. the state should arrest marcella’s abuser. b. the state should find a home for marcella as soon as possible. c. the state should enforce stricter laws in the area where marcella resides. d. the state should provide medical assistance to marcella.