During each cycle, a refrigerator absorbs 710 J of heat from the interior cabinet and exhausts 1850 J to the surrounding air. How much mechanical energy is required to operate the refrigerator during each cycle? A 710 J
B 880 J
C 2560 J
D 1140 J

Six solutions are made, each with a y concentration of 1.0 μm and varying concentrations of ab as shown below. based on the concentrations, rank the solutions in decreasing order of reaction rate.

The particles of an ice cube at 0°c (represented by the blue circles) come in contact with the particles of juan’s hand at 37°c (represented by the orange circles). which diagram correctly represents the temperature of the two substances and the direction of heat flow?

Positrons are spontaneously emitted from the nuclei of