A 3) How far will 20 N of force stretch a spring with a spring constant of 140 N/m?

The electronic structure or chlorine is 2.8.7 what is the electronic structure of fluorine?

Two kilograms of air within a piston–cylinder assembly executes a carnot power cycle with maximum and minimum temperatures of 800 k and 300 k, respectively. the heat transfer to the air during the isothermal expansion is 60 kj. at the end of the isothermal expansion the volume is 0.4 m3. assume the ideal gas model for the air. determine the thermal efficiency, the volume at the beginning of the isothermal expansion, in m3, and the work during the adiabatic expansion, in kj.

In which of these cases are the two wave points considered to be in phase with each other?