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.
They look for antibodies to the bacterium, or germ, that causes syphilis. Some tests look for the syphilis germ itself. Syphilis is a sexually transmitted infection. That means it is spread through sexual contact: vaginal, anal, or oral sex. Testing is done on blood, body fluid, or tissue samples.