Answer: 2 hr 45 min
Explanation:
Given
The average speed between San Diego and Los Angeles is 
time taken for this trip is 
Distance between San Diego and Los Angeles is

For Friday afternoon, the average speed is 
time taken to complete the trip is
A charged particle moving in a magnetic field experiences a force equal to:

Thus, the magnitude of the force that the proton experiences is given by:

The magnetic field is perpendicular to the proton's velocity, therefore, we have
. Replacing the given values, we obtain:

A and B i think is the answer
Not sure if this is what your looking for, but hope it helps. Nitrogen gas can be changed into nitrogen compound through nitrogen fixation, which is the conversion of nitrogen gas to ammonia, that are absorbed by the plant to make protein. Another way is through animals eating plants and obtaining nitrogen, which is later released, by decomposes, when the organism dies.