Tech a says that the center of gravity on a vehicle is located at the vehicle body’s lowest point. tech b says that having a low center of gravity makes a vehicle handle better. who is correct?

Tech B is correct

Explanation: The center of gravity of a body account for its stability. The lower the center of gravity, the more stable the body is, and vice versa. Going by this, tech B is absolutely correct. However, not all vehicles have low center of gravity (typical examples being tall vehicles like trailers and trucks), making statement A not entirely correct.

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: