Find the magnitude and direction of the vector sum R1 where R1 = A + B . = 15.9 m at an angle 180 degrees from the positive horizontal axis, and the vector B = 8.7 m at an angle 70.2 degrees from the positive horizontal axis. Answer in units of m.
What Causes Sore Throat? Sore throat (also called pharyngitis) is typically caused by a viral or bacterial infection. An estimated 200 to 300 different strains of virus cause colds and sore throat.1 In up to 90% of cases, sore throat is caused by viruses linked to the common cold or flu. The other 10% of cases result from bacterial infections or some other medical condition.
The most common causes of sore throats are viruses. Viral sore throats are often accompanied by other cold symptoms that may include a runny nose, cough, red or watery eyes, and sneezing. Other causes of sore throat include smoking, pollution or irritants in the air, allergies, and dry air.he most common causes of sore throats are viruses. Viral sore throats are often accompanied by other cold symptoms that may include a runny nose, cough, red or watery eyes, and sneezing. Other causes of sore throat include smoking, pollution or irritants in the air, allergies, and dry air.