An object of mass m slides down an incline with angle e. Which expression
shows the net force on the object perpendicular to the surface of the incline?
O A. mg cos(0)
O B. Fn-mg sin(e)
O c. mg sin(e)
O D. Fw-mg cos(0)

D. FN-mg cos(0)

Explanation:

prolly a beacuse the momentuem the car has increases while going down hill

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.