Calculate the number of collisions per second of one hydrogen molecule at 26 °C and 6.00 bar . The diameter of a hydrogen molecule is 270 pm .

The particles of an ice cube at 0°c (represented by the blue circles) come in contact with the particles of juan’s hand at 37°c (represented by the orange circles). which diagram correctly represents the temperature of the two substances and the direction of heat flow?

Amarble, a bowling ball, a basketball, and a baseball are rolling across the floor at 10 m/s. which one has the greatest kinetic energy? the marble the bowling ball the basketball the baseball

Aray of light traveling parallel to the principal axis of a concave mirror will be reflected through the mirror's