The periodic table has a lot of information in the form of letters and numbers. the information is organized into boxes, which are placed in rows and stacked in columns. which of the following does each box represent?

Science and technology are interdependent. advances in one lead to advances in the other. give an example of this phenomenon.

Acalorimeter uses the principle that thermal energy flows from hotter material to colder material until both reach the same

Air enters a gas turbine with two stages of compression and two stages of expansion at 100 kpa and 17°c. this system uses a regenerator as well as reheating and intercooling – the intercooler returns the air to the inlet temperature. the pressure ratio across each compressor is 4 ; 300 kj/kg of heat are added to the air in each combustion chamber; and the regenerator operates perfectly while increasing the temperature of the cold air by 20°c. determine the system’s thermal efficiency. assume isentropic operations for all compressor and the turbine stages and use constant specific heats at room temperature. (0.378)