Calculate the velocity of a 2-kg ball that has momentum of 10 kg • m/s west

What changes occur in the brain during the teenage years? 25 points, someone me out!a.) thinking becomes slower as the brain grows larger. b.) connections between neurons become stronger and faster. c.) unused neurons fuse together to form larger, better functioning neurons. d.) more neurons are developed.

An electromagnet is a device in which moving electric chargers in a coil of wire create a magnet. whats one advantage of using electromagnetic in devices

Ascientist wants to test ways to reduce pollution in lake . what is the bestway of doing this