If a light ray is reflected off the shiny surface of 170 degrees at what angle did the light ray first strike the surfacea) 70 degrees b) 10 degrees c) 170 degrees d) 110 degrees asap

Select the atomic models that belong to the same element

Write a brief passage describing a neutral atom of nitrogen-14 (n-14). describe the number of protons, neutrons, and electrons in the atom, where each type of particle is located, and how the terms atomic number, mass number, and atomic mass are related to the particles. use the periodic table to you. 14 protons and eletrons since its a neutral atom

In which phase of mitosis do the spindle fibers pull the chromosomes apart to opposite sides of the cell ?