Which type of science: biology ( the study of life), chemistry ( the study of atoms/molecules), or physics ( the study of forces and universe) do you think is the most interesting? why?

Which simple machine is not part of this compound machine? a. lever b. pulley c. inclined plane d. wheel and axle

Ammonia enters the expansion valve of a refrigeration system at a pressure of 10 bar and a temperature of 18oc and exits at 6.0 bar. the refrigerant undergoes a throttling process. determine the temperature, in oc, and the quality of the refrigerant at the exit of the expansion valve.

Multiply or divide to make this english distance conversion. 174 inches = feet (14.5, 58, 2,088, 23)