How are elements organized on the periodic table? Select all that apply. into periods or horizontal rows that share a pattern by order of relative abundance of the element on Earth into order of densities from lowest to highest into vertical groups of elements that have similar physical and chemical properties by increasing order of atomic number

What component of earth’s atmosphere exists entirely as a result of photosynthesis?

Light from two different sources are incident upon the same side of a polarizing filter. light from one source is polarized with total intensity ip, while light from the other source is unpolarized with total intensity iu. as you rotate the polarizing filter through 360 degrees, the intensity of the transmitted light on the other side varies by a factor of 9. what is the relative intensity of the initial polarized source to the unpolarized source, or ip/iu?

Part of a control linkage for an airplane consists of a rigid member cb and a flexible cable ab. if a force is applied to the end b of the member and causes it to rotate by θ = 0.5°, determine the normal strain in the cable. originally the cable is unstretched.