In a cathode ray tube, the number of electrons that reach the fluorescent screen is controlled by the
a. anode.
b. grid.
c. cathode.
d. deflecting plate

How does a large body of water, such as the ocean, influence climate?

Which terms are used to identify pure substances

In a heat engine of 1000 j of heat enters the system and the piston does 500 j of work what is the final internal energy of the system if the inital energy was 2000 j we have to do all of these down here 1)write the equation 2)list out your know variables 3)plug the numbers into the equations 4)solve 5)write your solution statemtn that includes inital energuy and final energuy added