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:
Earth has an angular velocity of radians per hour. linear velocity of a point on the Earth's surface was calculated by multiplying this angular velocity by the radius of the Earth = . Using this as a guide, we define linear velocity, v, to be where w is angular velocity in radians and r is the radius. Let's Practice: