Recent content by jakeddong

So I googled and found out that brightness of a lightbulb is directly related to current, but for some reason it doesn't match the concept I have in my head. I know that a lightbulb gets brighter as it gets hotter (like any kind of metal) So for a lightbulb to get brighter, it needs more...

Hi, so I am currently learning about force in my physics class in high school. I get the calculation part but I'm really confused about the whole concept. For example: when a nickel slides on a flat surface of glass and hits a penny, the nickel stops and the penny shoots off. The nickel...