You roll two cans down a hill. One can is a regular normal can. The other can has the top and bottom cut off. Which can will reach the bottom first?

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.

scientific laws are the result of testing theories and proving them to be facts.

momentum of soft ball three times less than baskey ball