Why can videos be streamed from one computer to another with excellent quality?
A. They are received using either analog or digital signals.
B. They are transmitted using digital signals.
C. They are transmitted using analog signals.
D. They are received using both analog and digital signals.
SUBMIT

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.

In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2000 j? 1. write the equation 2.list out your known variables 3.plug the numbers into the equations 4.solve 5.write your solution statement that includes initial energy and final

What is the force that opposes motion and works against the downward pull? a) friction b) gravity c) weight d) acceleration