With easy 8th grade !
why is a standard system of measurement important?

scientists want to share measurement data that they can understand.

each country wants its own set of measurement standards.

measurements are seldom shared with scientists in different countries.

scientists speak many different languages.

3. how much energy in joules is required to evaporate .0005 kg of liquid ammonia to vapor at the same temperature? 4. how much energy ( in megajoules ) is given up by .75 kg of water at 0c when it freezes to form ice at 0c? 5. explain how heat works between and at critical temperatures?

Heat is the total potential energy of a substance that can be transferred. true false

28. which is not a reason that water is used to store spent fuel rods from nuclear power plants? water increases the speed of the chain reaction in the fuel rods. water protects nuclear power plant workers from the high temperature and radiation of the fuel rods. water acts as a radiation shield to reduce the radiation levels. water cools the spent rods. salts action