a force that originates from a source other than the two objects of the system a force that is not balanced by other forces. A system in which the only forces that contribute to the momentum change of an individual object are the forces acting between the objects themselves can be considered an isolated system. force that originates from a source other than the two objects of the system a force that is not balanced by other forces. A system in which the only forces that contribute to the momentum change of an individual object are the forces acting between the objects themselves can be considered an isolated system.
The Dow's highest closing record is 21,115.55 on March 1, 2017. The Dow set 32 new record closing highs since the 2016 presidential election. Investors were confident that Donald Trump would work with Congress to pass business-friendly legislation. That includes tax cuts and other job-boosting measures.
Both the S&P 500 and the Nasdaq rose for a fifth straight week, while the Dow brought its string of weekly gains to three. The Dow Jones Industrial Average DJIA, +0.85% rose 11.44 points, or less than 0.1%, to end at 20,821.76. The blue-chip average rose for an 11th straight day for the first time since 1992, as well as its 11th straight record closing highâthe longest such streak since 1987. The Dow had traded in negative territory for essentially the entire session, only breaking into the green with seconds to spare.