An ambulance traveling eastbound at 142.0 km/h with sirens blaring at a frequency of 8.00 x 102 hz passes cars traveling in both the eastbound and westbound directions at 57.0 km/h. (assume the speed of sound is 343 m/s.) (a) what is the frequency observed by the eastbound drivers as the ambulance approaches from behind? hz (b) what is the frequency observed by the eastbound drivers after the artibulance passes thern? hz (c) what is the frequency observed by the westbound drivers as the artıbulance approaches thern? hz (d) what is the frequency observed by the westbound drivers after the ambulance passes thern?

grav potential energy

it was given as a lesson and guide for prayer.

this is an example of "committed" time.

committed time, as contracted time, takes need over essential and available time since it is seen as profitable work. it alludes to the time allotted to keep up a home and family. at the point when a man is commuting using committed time this individual may feel that the drive is an obligation to family, for example, strolling youngsters to class or driving a mate to work. contracted and committed time clients may feel that their commute could really compare to the commute of important or leisure time clients on the grounds that their commute is profitable work. in this manner, they might be more disposed to pick a mechanized method of movement.  

im srry but ur wrong the answer is d a smooth rock, some red dirt, and an empty bird's nest.