Pulley If there are "p" of these parts of the rope supporting the load "W," then a force balance on the moving block shows that the tension in each of the parts of the rope must be "W/p." This means the input force on the rope is "T"="W/p." Thus, the block and tackle reduces the input force by the factor "p." The simplest theory of operation for a pulley system assumes that the pulleys and lines are weightless, and that there is no energy loss due to friction. It is also assumed that the lines do not stretch. In equilibrium, the
What a Terrible World, What a Beautiful World What a Terrible World, What a Beautiful World What a Terrible World, What a Beautiful World is the seventh studio album from The Decemberists, released on January 20, 2015. The album's title comes from a line in the song "12/17/12", a reference to the date of Barack Obama's speech in response to the Sandy Hook Elementary School shooting and lead singer Colin Meloy's conflicting feelings about the shooting and his happy personal life. "What a Terrible World, What a Beautiful World" received mostly positive reviews. It currently has a metascore of 77 and user score of 8.1 from Metacritic. "The