Discover Questions

If a planet has a day that is 20 hours long and each hour is 40 minutes long, how many hours is that in Earth hours? How many liters of oxygen gas are required to burn 2.97 L of acetylene (C2H2) at STP? Can antimatter be found in nature? Or is it rather a substance the futurists believe that needs to be artificially created in a lab? A cylinder's volume is given by (πx^3+4πx^2-3πx-18π cm^3). If the radius of the cylinder is (x+3) cm, what is the height in terms of x? ? Using the rational root theorem, state potential rational roots of P(x)=4x^3+x^2-7x+3?