how did the invention of the light bulb and advancements in electrical power play a key role in the growth of american cities in the late 1800s?

How well does the extrapolated value (the slope of the trend line) agree with the accepted value of free-fall acceleration (g = 9.8 m/s2)?

Sort the images based on whether there's a force of attraction or repulsion between the magnets shown. attraction repulsion

A10-kg piece of aluminum sits at the bottom of a lake, right next to a 10-kg piece of lead, which is much denser than aluminum. which one has the greater buoyant force on it? explain. b - the aluminum a) both have the same buoyant force. b) the aluminum c) the lead d) it cannot be determined without knowing their volumes.