11) a boy is standing next to a radio. as he moves away from the radio, which would most likely occur? a) an increase in the speed of sound wave particles b) a decrease in the speed of sound wave particles c) a decrease in sound intensity, with respect to the observer d) an increase in sound intensity, with respect to the observer

a decrease in speed of sound waves okay my friend

It's C

Explanation:

An observer moves toward the source, the sound intensity increases. As an observer moves away from the source, the sound intensity decreases. The speed of sound molecules is not altered. Therefore, the correct answer is a decrease in sound intensity, with respect to the observer.

the conditions that made the byzantine empire vulnerable to attacks by the muslin turks were the sack of constantinople by western crusaders, the conquests of the sultanate of rum, presence of rival kingdoms and finally the set up of fiefdoms at the empire which were owned by the ghazis (turkish warriors).

health care plans in the united states having high costs because they are focusing on providing quality programs for different groups of individuals. the quality of the service is based on money flow received from the members. without this investment, couldn't be possible a constant scientific searching to prevent death and illness caused because of low levels of health investigation. currently, the complaints are not about the highest cost, but about the coverage and benefits to access the necessary health services required by the members.  

besides, if a global health system is established the quality levels will fall down because of the standardized of the health. the access to care will increase but the quality will be low because it depends on the money invested.