Balance forces are two forces acting in opposite directions on an object, and equal in size. Anytime there is a balanced force on an abject, the object stays still or continues moving continues to move at the same speed and in the same direction.
Syphilis is a sexually transmitted disease (STD) that is found around the world. In the United States it is more widespread in parts of the south. What causes syphilis? Syphilis is caused by bacteria (Treponema pallidum) that enter through your skin, mouth, or anus.
Back to TopAlternative Names. Primary syphilis; Secondary syphilis; Late syphilis; Tertiary syphilis. Syphilis is a sexually transmitted, infectious disease caused by the spirochete Treponema pallidum . This bacterium causes infection when it gets into broken skin or mucus membranes, usually of the genitals. Syphilis is most often transmitted through sexual contact, although it also can be transmitted in other ways.