Suppose icebergs (c = 2.03 J/g·°C; Lfus = 335 J/g) at 0° floated into an ocean (c = 3.93 J/g·°C) that was at 17°C. How much ice would have to melt—and then warm up—to lower the temperature of the ocean by 5 °C. (Note: Do not forget to include the phase change of iceberg to liquid.)

How many hydrogen (h) atoms are in one molecule of sulfuric acid, h2so4? (1 points) 1 2 4 7

Unpolarized light of intensity i_0=750w/m^2 is incident upon two polarizers. after passing through both polarizers the intensity is i_2=280w/m^2. (a) what is the intensity of the light after it passes through the first polarizer in w/m^2? (b) write an equation for the angle between the polarizers in terms of the initial (i_0) and final (i_2) intensities. (c) find the angle between the polarizers in degrees.

An architect plans to use solar energy to heat the next house he designs. what principle of absorption and infrared energy can be applied to the design of the new house? how could she apply to those principals?