What does einstein's famous equation for nuclear energy, e = mc^2, mean?
a. some mass is converted into energy in a nuclear reaction.
b. some mass and energy are lost in a nuclear reaction.
c. mass and energy are produced in a nuclear reaction.
d. mass and energy are destroyed in a nuclear reaction.

The diagram shows a series of volcanic island and a hot spot determine the direction of movement of the tectonic plate that for the island

Water is siphoned from a large tank and discharges into the atmosphere through a 50-mm diameter tube. the end of the tube is b = 2.1 m below the tank bottom which is a = 7.4 m deep, and viscous effects are negligible. determine the maximum height h over which the water can be siphoned without cavitation occurring. atmospheric pressure is 101.4 kpa, and the water vapor pressure is 1.79 kpa (absolute)

He latent heat of vaporization for ethyl alcohol is 854 j/g. the amount of energy, rounded to the nearest whole number, needed to change 5.20 grams of ethyl alcohol from a liquid to a gas is