"Mercury is 0.34 AU* from the Sun, Earth is 1 AU from the Sun, and Pluto is 40 AU from the Sun. Constellation stars are 25 million AU from the Sun. Our galaxy of stars is 7.6 billion AU across. Which statement is trueMercury is nearer to the sun

Frost wedging occurs when water seeps into a crack in a rock, freezes, and causes the crack in the rock to widen. t or f

The first law of thermodynamics states that heat added to a system is neither created nor destroyed but is transformed ⇒ as it changes into other forms of energy.

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.