What mass of water must evaporate from the skin of a 70.0 kg man to cool his body 1.00 ∘c? the heat of vaporization of water at body temperature (37.0 ∘c) is 2.42×106j/(kg⋅k). the specific heat of a typical human body is 3480 j/(kg⋅k) .

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?

When the magnetic domains in a material can be aligned, but eventually drift out of alignment, the material is

The earth exerts a gravitational force of 500 n on amy. what is amy’s mass in kg?