Find the force acting on it and the acceleration. 15 points. Will give brainliest!

Explanation:

For net force:

Firstly, finding the force of friction:

Where is the coefficient of friction, m =  250 kg and g = 9.8 m/s²

Now, Finding of the pulling box:

So, The net Force is

For Acceleration:

For a, it is:

=>

=> a = 1905 / 250

=> a = 7.62 m/s²

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.