Suppose an automobile engine can produce 220 N⋅m of torque, and assume this car is suspended so that the wheels can turn freely. Each wheel acts like a 16.5 kg disk that has a 0.15 m radius. The tires act like 2.25-kg rings that have inside radii of 0.195 m and outside radii of 0.31 m. The tread of each tire acts like a 11-kg hoop of radius 0.345 m. The 14.5-kg axle acts like a solid cylinder that has a 1.95-cm radius. The 28-kg drive shaft acts like a solid cylinder that has a 2.9-cm radius.

calculate the angular acceleration in radians per square second, produced by the motor if 95.0% of this torque is applied to the drive shaft, axle, and rear wheels of a car.

what type of charge does it have? negative

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:

it would be kevlar ^^