Which statement describes the image? This is an image of an elliptical galaxy.
This is an image of an irregular galaxy.
This is an image of a normal spiral galaxy.
This is an image of a barred spiral galaxy.

Africtionless piston-cylinder contains 50 l of saturated liquid r-134a. the piston has a mass and an area resulting in an applied pressure of 500 kpa on the refrigerant. the refrigerant is now heated until its temperature rises to 70∘c. calculate the work (in kj) done during this process.

The arrival of in the early days of europa’s existence could have formed its ocean. it is likely that the water experienced similar to earth. it is also possible that this water is retained beneath europa’s surface and in its atmosphere due to europa’s . 1.) a. precipitation b. water vapor c. icy debris 2.) a. gravitational compression b. biochemical cycling c. radiogenic heating 3.) a, gravity b. magnetic field c. heat energy for plato

Which of the following are used in an electrochemical cell? a. electrodes b. electrolyte c. terminals d. all of the above