Chlorpheniramine is an antihistamine that reduces the effects of natural chemical histamine in the body. Histamine can produce symptoms of sneezing, itching, watery eyes, and runny nose. Chlorpheniramine is used to treat runny nose, sneezing, itching, and watery eyes caused by allergies, the common cold, or the flu.
The mean orbital velocity of Earth is about 29.783 kilometers per second. That's the speed the planet is moving through space in its orbit about the sun. Earth's speed varies a bit because its orbit is slightly eccentric, but that's why we say mean orbital velocity. One can calculate this value by knowing two facts:
Best Answer: According to http://www.heavens-above.com/orbit.aspx?... it orbits the Earth 15.7166 times per day, which works out at an orbital period of 91.6 minutes. At an average height of 354 km, one orbit is 42,298 km and therefore the speed is 27,700 km/hr or 17,212 mph.