please help The refrigerant leaving the evaporator of a TXV system will A. be colder than refrigerant entering the system. B. always be a vapor. C. be superheated a few degrees. D. be a mixture of water and solids.​

Ways that industry and agriculture use physical properties to separate substances

Física: un futbolista patea hacia el arco con una velocidad de 15m/ah, calcular: a)el alcance para un ángulo de tiro de 25º, b) el tiempo que el balón permanece en el aire.

A1-lb collar is attached to a spring and slides without friction along a circular rod in a vertical plane. the spring has an undeformed length of 5 in. and a constant k =25 lb/ft. knowing that the collar is released from being held at a determine, the speed of the collar and the normal force between the collar and the rod as the collar passes through b.