What is the smallest number of whole logs (rho = 725 kg/m3, radius = 0. 0800 m, length = 3. 00 m) that can be used to build a raft that will carry four people, each of whom has a mass of 80. 0 kg?.

Which statement is true for light passing into a medium that is more optically dense than the first medium through which it past

Look at the potential energy diagram for a chemical reaction. which statement correctly describes the energy changes that occur in the forward reaction?

Four point charges each having charge q are located at the corners of a square having sides of length a. find symbolic expressions for the following. (a) the total electric potential at the center of the square due to the four charges (use any variable or symbol stated above along with the following as necessary: ke.) vtotal= (b) the work required to bring a fifth charge p from infinity to the center of the square (use any variable or symbol stated above along with the following as necessary: w=