Find the center of mass (in cm) of a one-meter long rod, made of 50 cm of brass (density 8.44 g/cm3) and 50 cm of aluminum (density 2.7 g/cm3). (assume the origin is at the midpoint of the rod, with the positive direction towards the part of the rod made of aluminum. indicate the direction with the sign of your answer.)

Awave is produced in a rope. the wave has a speed of 33 m/s and a frequency of 22 hz.

The electronic structure or chlorine is 2.8.7 what is the electronic structure of fluorine?

This is important 1. what happens to the speed of molecules in water vapor when it condenses to form a liquid? (2 points) the molecules slow down. the molecules speed up. the molecules slow down and then speed up. the molecules speed up and then slow down. 2. how might human activities change to compensate for a decrease in water supplies? (2 points) humans might build a factory. humans might build drainage systems. humans might extract more water from the ground. human behavior does not change because of the water cycle. i'll be grateful if anyone can answer these 2 questions !