What would be the weight of the moon if it were resting on the surface of the earth? remember that r is the distance between the centers of the objects. rearth = 6.37x106m mearth =5.98x1024kg

True or false when elements combine to form a mixture, the resulting chemical properties may be very different from those of the elements that make it.

Write a full page that sumerizes thermodynamics it’s from the website visionlearnig

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.