<h2>
Average speed of round trip is 48 mph</h2>
Explanation:
Let the distance from A to B be s.
A car travels from A to B at a speed of 40 mph then returns, using the same road, from B to A at a speed of 60 mph.

Total distance traveled = 2s
Total distance traveled = Average speed x Total time

Average speed of round trip is 48 mph
Answer:
0.00299T
Explanation:
The magnetic field B = 0.00299T
Answer:
It looks like A is the correct answer.
Yeah what the guy above me said