Which statement correctly describes mass-energy equivalence? All energy in the universe will be converted to an equivalent amount of mass.
Mass can decrease in nuclear changes without the production of energy.
All energy in the universe is a result of mass being converted into energy.
A large amount of mass is equivalent to a small amount of energy.

Need this now! do pilots live long

Suppose that a cylindrical tank 6 meters high with a radius of 2 meters is filled to the rim with water. the tank is buried so that the top of the tank is 1 meter below ground level. the space above the tank is not filled with water. calculate how much work needs to be done by a pump to pump the water out of the tank up to ground level. (the water weighs 9,800 newtons per cubic meter.)

Which of the following could represent a single-replacement reaction? a. element + compound = element + compound b. element + element = compound c. compound +compound = compound + compound d. compound = element + element