On an icy day, the coefficient of friction between a car's tires and the expressway exit ramp is 0.171. the radius of the exit curve is 88.9 meters. the exit ramp is completely level. determine the maximum speed with which the car can move through the ramp without sliding.

Apply Newton’s Second Law in the direction towards the radius of the curve.

Explanation:

On the exit curve, the car is making circular motion. The only force that balances its centripetal force is the force of friction. Otherwise, the car would slide off the road.

answer: electrons

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.