A thin rod of length 0.88 m rests on a fulcrum at its midpoint. A mass of 0.23 kg is placed at one end of the rod. Where must a mass of 0.43 kg be placed to balance
the rod (a = 0 rad/s)?

! 55 !  

write a paragraph or story to explain the transformation between potential and kinetic energy as shown in your picture or model.  

you should have at least 5 complete sentences with a main idea and supporting details.  

you must include the following words:  

potential energy

kinetic energy

mechanical energy

conservation of energy

dude, this is hard lol : ))

the old price per ounce is c/4.

the new price per ounce is c/3.6.

the ratio of the old price to the new one is

(c/4)/(c/3.6) = (c/c)×(3.6/4) = 0.9 . . = 9/10 . . "nine tenths" in either form

3. dark matter

empty space could also be a simple vacuum