And both discovered electromagnetic induction. this is that electric current could be produced in a wire by moving a magnet in or out of a coil of wire.

Michael Faraday  & Joseph Henry

Explanation:

Michael Faraday  & Joseph Henry both discovered Electromagnetic induction Working independently in Britain and United states respectively.Both discover that  current could be induced in a wire by moving a magnet in or out of a coil of wire.Henry develop the electromagnet in a practical device and laid the foundation of Electrical telegraph invented by Samuel F. B. Morse and Sir Charles Wheatstone, separately.

okay i have so many questions. but the big one here is: um wt..f is this mess? ?

b. lifting dumbbell weight at 20-degree angle from the body after a 45-degree angle