The drawing shows two blocks that are placed at the ends of a massless board. the board is balanced on a support that serves as an axis of rotation. the block on the left has a mass of 6.5 kg. what is the moment of inertia of this system about the axis of rotation?

If 2 moles of co_2 at 2l and 500k are expanded reversibly to 20l, more work can be obtained from an adiabatic process than from an isothermal process. is the above statement true or false?

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 !

Abar magnet cut in half will form a total ofpoles. a)fourb)eightc)two