A water tank of demensions 3 metre × 2 metre × 2 metre is half filled with water how much will be exerted by water in the bottom of the tank

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.

Which subatomic particle has a negative charge

Ais a machine that makes work easier when a single force is applied. a simple machine b compound machine c endangered machine d complex machine