<span>Rays of sunlight hit the solar panel and are </span><span>absorbed by semi-conducting materials such as silicon. Photovoltaic cells are </span><span>usually made from silicon, an excess material that constitutes more </span><span>than 28 percent of the Earth's crust. These cells are created by bonding two </span><span>wafers of silicon that are connected to metal wires </span>The top water is silicon is thin and bottom is thicker the wafers produce electricity as absorb solar radiation hope it helps
A theory is an idea that is widely agreed on by scientists and can be changed when new info comes to light while a hypothesis is an educated guess sometimes based on prior knowledge.
A body with a constant speed always has a zero acceleration
Hence if Korey ran around the track at 10 meters per second and had a constant speed and did not change directions, then his acceleration will be 0m/s² not considering his initial speed
