Amy has a plastic cup filled to the top with water. she uses an eyedropper to add more water and discovers that it takes many drops before the water spills over the top.
this cohesiveness results from which property of water?

surface tension

heat capacity

specific heat

universal solvent

The current in a hair dryer measures 11 amps. the resistance of the hair dryer is 12 ohms. what is the voltage?unit:

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)

Ais a machine that makes work easier when a single force is applied. a simple machine b compound machine c endangered machine d complex machine