The owner of a window-treatment company wants to design shades that will cover the windows of a house. the shades should also warm the house by maximizing the absorption of solar energy coming through the windows. which kind of material would best accomplish this task? answers a)black and textured b)black and smooth c)white and textured d)white and smooth

a) black and textured

Explanation:

A black body is a good radiator and absorber of heat energy. To achieve his goal, he should use a black material which would absorb heat coming the sun through the window and radiate it inwards the house. Also, the surface should not be smooth, so as to reduce the amount of heat that would be reflected by it.

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.