An aircraft has a liftoff speed of 30m/s. What minimum constant acceleration does this require if the aircraft is to be airborne after a takeoff run of 240 m ?

a = 1.875 [m/s²]

Explanation:

The plane begins to move from rest to reach the take-off speed, by means of the following equation of kinematics we can calculate the acceleration.

where:

vf = final velocity = 30 [m/s]

vo = initial velocity = 0

a = acceleration [m/s²]

x = distance = 240 [m]

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:

adding a(n) to an electric circuit would increase the magnetic field around a wire;

b. solenoid

a solenoid is a type of electromagnet whose purpose is to generate a controlled magnetic field.

if the purpose of the solenoid is instead to impede changes in the electric current, a solenoid can be more specifically classified as an inductor rather than an electromagnet.