Was the first person to propose the idea of moving continents as a scientific hypothesis.
a. alfred wegener
b. charles richter
c. antonio snider-pelligrini
d. abraham ortelius

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?

Argon is adiabatically compressed from an initial volume of 16 liters to a final volume of 2 liters. by what factor do the following quantities change? do they increase or decrease? (a) the rms speed (b) the thermal energy of the gas (c) the molar specific heat cv (d) the pressure

Which of the following is an example of motion in two dimensions?