Explain why a black asphalt parking lot feels hotter to your bare feet then a concrete sidewalk does and describe how the heat is transferred to your feet

This is because black objects or surfaces absorb heat more than white objects.

Explanation:

Light energy can be converted into heat energy. A black object absorbs all wavelengths of light and converts them into heat, so the object gets warm. A white object reflects all wavelengths of light, so the light is not converted into heat and the temperature of the object does not increase noticeably. heat is transferred to feet by heat conduction. Also since the feet is a cold body and the floor is hot,the method of heat transfer is CONDUCTION.

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.