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.
Not all sore throats are a result of a strep infection. Other illnesses can cause this symptom, too. These include the common cold, a sinus infection, post-nasal drip, and acid reflux. Sore throats caused by other medical conditions usually improve on their own with or without treatment in a few days.