Using Hooke’s law, what happens when the displacement is tripled? A. The restoring force is tripled
B. The restoring force is reduced by one third
C. The amplitude is reduced by one third
D. The spring constant is tripled

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.

Ineed ! using proper grammar, spelling, and punctuation, write at least one 5 sentence paragraph describing 3 ways we use the elements of the electromagnetic spectrum (ems) in our everyday lives.

Does current flow through or across a resistor?