Ruben lifts a 125 Newton box up to the top of a shelf 2 meters high. How much work (in Joules) did Ruben do?

Steam enters an adiabatic diffuser at 150 kpa and 1208c with a velocity of 550 m/s. determine the minimum velocity that the steam can have at the outlet when the outlet pressure is 300 kpa.

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.

Awave with a frequency of 500 hz is traveling at a speed of 100 m/s.what is the wavelength?