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:
A satellite is being sent to the universe for remote sensing.Calculate the orbital velocity of earth so that the satellite revolves round the earth if radius of earth R = 6.57 $\times$ 10 6 m, mass of earth M = 5.98 $\times$ 10 24 kg and Gravitational constant G = 6.67 $\times$ 10 -11 m 3 /s 2 kg. is the mass of the body at center, R is radius of orbit. Orbital velocity is the velocity given to the body to keep it in orbit. This velocity is usually given to the artificial satellite so that it revolves round any particular planet.