Discover Questions

What is the equation of a complete combustion? Why do stars orbit a center of mass along with a planet. Together, their momenta add to zero. Does this mean they both started from rest? Suppose a ball is launched upward at 20° above the horizontal plane. How fast is it moving at the top of its curved trajectory? What are the explicit equation and domain for a geometric sequence with a first term of 4 and a second term of −12? How many meters are in 3 and a half kilometers?