When do two pure tones sound consonant or dissonant? Why do certain large musical intervals sound dissonant for complex tones?

Ared apple is illuminated by a blue light the apple will appear

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.

Which of hubble’s discovery support the big bang theory