4. When you get to the snow, you grab a handful to take back to the beach. However, by the time you get there, the snow has disappeared, and you are left with water dripping down your arm. (10 points)
a. Describe the phase change that happened to the snow in your hands. What happened to the snow's molecules during this phase change? (3 points)

b. If the water continued to heat, what would be its next phase change? (3 points)

c. Did the snow's entropy increase or decrease while in your hand? Explain your answer. (4 points)

The transfer of heat through the movement of a gas or liquid a. convection b. conduction c. radiation

Alinearly polarized electromagnetic wave has an average intensity of 196 w/m^2. this wave is directed towards two ideal polarizers (in real polarizers, transmission is also effected by reflection and absorption). polarizer a is oriented with its transmission axis at an angle of θ_1=20.8∘ with the incident electric field. polarizer b has its axis at an angle of θ_2=63.0∘ with the incident electric field. what is the average intensity of the wave after it passes through polarizer a? what is the average intensity of the wave after it passes through polarizer b? suppose that the two polarizers a and b are interchanged. what would the average intensity be after passing through both polarizers?

What type of relationship exists between the length of a wire and the resistance, if all other factors remain the same? o a. resistance is directly related to length. ob. resistance is directly related to the square of the length. c. resistance is inversely related to the length. d. resistance is inversely related to the square of the length. reset next