At the start of a trip, the odometer on a car read 21,395. at the end of the trip, 13.5 hours later, the odometer read 22,125. assume the scale on the odometer is in miles. what is the average speed the car traveled during this trip?

54.81 mph

Explanation:

Initial reading on the odometer = 21395 miles

Final reading on the odometer = 22125 miles

Total time the car travelled =  13.5 hours

Distance covered by the car

22125-21395 = 740 miles

As acceleration is not given assume it as constant.

Speed = Distance / time

∴ Average speed the car traveled during this trip is 54.81 mph

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:

gas and liquid