A forklift pushes a 185kg box into a 335kg box, which slides into a 80kg box. If all 3 boxes slide across the floor at 4.5m/s, how much force does the 185kg box exert on
the 335kg box? The coefficient of friction between each box and the floor are listed
in the table below:

The amount of force the 185 kg box exerts on the 335 kg box is 2,675.165 N

Explanation:

The given information are;

The mass of the boxes and their coefficient of friction are as follows;

1) Mass, m₁ = 185 kg, coefficient of friction, μ₁ = 0.700

2) Mass, m₂ = 335 kg, coefficient of friction, μ₂ = 0.705

3) Mass, m₃ = 80 kg, coefficient of friction, μ₃ = 0.460

The frictional forces of the blocks are;

1) 185 × 9.8 × 0.700 = 1269.1 N

2) 335 × 9.8 × 0.705 = 2314.515 N

3) 80 × 9.8 × 0.460 = 360.64 N

Therefore, the total resistances of the boxes to motion, starting from the 80 kg box is given as follows;

360.64 N → (360.65 + 2314.515) N → (360.64 + 2314.515 + 1269.1) N

360.64 N → 2,675.165 N → 3944.255 N

Which gives;

Force exerted by forklift on 185 kg box = 3944.255 N

Force exerted by 185 kg box on 335 kg box = 2,675.165 N

Force exerted by 335 kg box on 80 kg box = 360.64 N

Therefore, the amount of force the 185 kg box exerts on the 335 kg box = 2,675.165 N.

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:

a. are