Which of the graphs shows that one of runners started 10 yards further ahead of the other?

Hey there!

Your Graph A

We are looking at the y-axis as the y-axis would explains the yard situation. We see that one of the runners started at 10 yards. And the other runner started at 0.

We can see that both runners were aiming for the same direction. 20 yards per 4 seconds. Or, 5 yards per second. Therefore, we see that one runner practically 'cheated' and had a head start.

Your Graph A

a solenoid is created by wrapping a l = 90 m long wire around a hollow tube of diameter d = 4.5 cm.   the wire diameter is d = 0.9 mm.   the solenoid wire is then connected to a power supply so that a current of i = 9 a flows through the wire.

randomized variablesl = 90 m

d = 4.5 cm

d = 0.9 mm

i = 9 a                                          

write an expression for the number of turns, n, in the solenoid. you do not need to take into account the diameter of the wire in this calculation.

calculate the number of turns, n, in the solenoid.

write an expression for the length of the solenoid (l2) in terms of the diameter of the hollow tube d.

calculate the length of the solenoid (l2)   in meters.

calculate the magnitude of the magnetic field at the center of the solenoid in teslas.

explanation:

terd muffin is the correct answer