A box slides with an initial speed of 4.0 ms4.0\,\dfrac{\text m}{\text s}4.0sm4, point, 0, start fraction, start text, m, end text, divided by, start text, s, end text, end fraction towards a spring on a frictionless horizontal surface. When the box hits a spring with spring constant k=150 Nmk=150\,\dfrac{\text N}{\text m}k=150mNk, equals, 150, start fraction, start text, N, end text, divided by, start text, m, end text, end fraction, the spring compresses by 0.30 m0.30\,\text m0.30m0, point, 30, start text, m, end text.

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:

less than one you can't create energy

i think the answer is tomato juice? not entirely sure though