Â· Prokaryotic cells that are present in the soil, air, water and in many humans body parts, such as the skin. 1  Reproduce by binary fission so that within a short time, the host can contain thousands of bacteria.  Produce toxins often as waste products, which harm the host.
The car is changing direction because of a force (supplied by friction between road and tires) directed toward the center of the curve. That is the centripetal force, which is always directed toward the center of the curve. When you swing a weight around your head at the end of a string, your hand supplies the centripetal force to keep the weight moving in a circle. Back inside the car, you feel a force pushing you AWAY from the center of the curve. That force is called centrifugal force, which is always equal in magnitude but opposite in direction from centripetal force. Answered by: Paul Walorski, B.A. Physics, Part-time Physics Instructor.
Relationship between Kp and the Aurora [ref] Right: From thousands of observations, Cornell University scientists have determined geographic subpoints for the southern edges of auroral displays. The curves represent four values of the planetary index (Kp). As this index increases, the aurora's southern edge moves southward. In this article we briefly explain some of the ideas behind the association of the aurora with geomagnetic activity and a bit about how the âK-indexâ or âK-factorâ works.