Hurry

which describes how fast-moving particles assist in transferring thermal energy to a cup after hot tea is poured into it?

a. they replace slow-moving particles.
b. they collide with slow-moving particles.
c. they collide with other fast-moving particles.
d. they are replaced by slow-moving particles.

The CORRECT answer is B. They collide with slow-moving particles.

altitude, density, pressure

air gets less dense the higher the altitude and also the air pressure is less as altitude rises.

a pan containing water is placed in a positio n where it is exposed to a 10 mile per hour wind. the pan contains a uniform depth of 1.27 cm of water, is quite wide, and has a length of 2.44 m in the wind direction. the water in the pan is at a constant temperature of 15.5 °c.