What are the starting ingredients and products of photosynthesis and cellular respiration

After a big snowfall, you take your favorite rocket-powered sled out to a wide field. the field is 195 m across, and you know that your sled accelerates at a rate of 3.65 m/s2 when the rocket is on. how much time will it take the sled to cross the field starting from rest, assuming the rocket is on the whole time?

What are similarities and differences of reflection, refraction, diffraction and absorption?

Current vs. forcewhat type of relationship does this graph show?