I've been trying to understand this but there are some points that lead me to confusion. The first is that a lot of people have been saying the the chemical reaction in the battery starts when you connect the two ends of the terminals to a load. I figured i guess the reaction won't take place...
I understand that microwaves cause water in food to heat up, but I don't understand why it is only water. Why won't the say lipids or protein molecules in food heat up why is it only water. And on a related topic is there a way to use frequency to not heat up water but to lengthen the bonds...
Lets say there are two waves in the ocean exactly identical heading in opposite directions. It seems like logically they would cancel out since they are moving in opposite directions. Yet they don't cancel out and I can't figure out why. If two cars hit each other with same force in opposite...
I get that the light changes speed as it enters a material with different densities, however I do not understand why a change in speed would cause a change in direction. For instance if I'm in a car and am going 55mph but slow down to 45mph I'm still going the same direction. It seems the only...
I was relearning some physics and I came across this problem.
Kyle and Paul, two NHL players, are playing hockey against each other and Kyle checks Paul, on center ice. They hang on to each other so the collision is inelastic. Assume Kyle weighs 90kg and Paul weighs 80kg. Kyle was skating at...