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.
1 Most sore throats are caused by a virus, such as a cold. 2  Antibiotics won't work for sore throats caused by a virus. 3  I'm not sure It may help to go back and read Get the Facts.. 4  Most sore throats are caused by a virus, such as a cold. 5  Antibiotics won't work for sore throats caused by a virus.