Abicyclist bikes the 56 mi to a city averaging a certain speed. the return trip is made at a speed that is 6 mph slower. total time for the round trip is 11 hr. find the bicyclist's average speed on each part of the trip.

Speed of the bicyclist when going to city =  14 miles per hour.

Speed while return trip = 8 miles per hour.

Explanation:

Let the speed of the bicyclist when going to city = x miles per hour.

Speed while return trip =  x - 6 miles per hour.

Total time taken = 11 hrs = Time for the trip to city + time taken for return trip.

Also, Time = Distance / Time.

So,

56 / x + 56 / ( x -6) = 11

11x² -178x + 336 = 0

Solving for x we get:

Acceptable x = 14 miles per hour.

Speed while return trip =  x - 6 miles per hour = 8 miles per hour.

layer a is the exosphere and layer b is the thermosphere.   is the answer i think but i hope this .

the answer is false. this is because for ice to melt, it requires latent heat of melting. latent heat means heat energy required to change phase without any increase in temperatures. therefore, the ice will take energy from the environment to melt hence atmospheric temperatures will reduce.