A cube slides down the surface of a ramp at a constant velocity. What is the magnitude of the frictional force that acts on the cube due to the surface?

a. The weight of the cube

c. The component of weight of the cube perpendicular to the plane

b. The component of the normal reaction at the surface parallel to the plane

d. The component of weight of the cube parallel to the plane

the average speed is 24.57 km/hr

an obstruction

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.