## Determine (a) the amount of moisture removed from the air (lbm /min) and (b) the rate at which heat must be removed.

Humid air enters a dehumidifier with an enthalpy of 21.6 Btu/lbm of dry air and 1100 Btu/lbm of water vapor. There is 0.02 lbm of vapor per pound of dry air at entrance and 0.009 lbm of vapor per pound of dry air at exit. The dry air at exit has an enthalpy of 13.2 Btu/lbm , and the vapor at exit has an enthalpy of 1085 Btu/lbm . Condensate with an enthalpy of 22 Btu/lbm leaves the dehumidifier. The dry air flow rate is 287 lbm /min. Determine (a) the amount of moisture removed from the air (lbm /min) and (b) the rate at which heat must be removed.

### determine an approximate value for the average magnitude of the magnetic field in which the electron resides.

You have a new summer job with NASA and are working on astronomical observations using electromagnetic radiation that is not in the visible range. Your supervisor has explained 21­cm radiation….

### What advice do you give the attorney?

You are hired as an expert witness by the attorney representing a doctor. The doctor is being sued by a patient who claimed radiation damage from the doctor’s x-ray machine…..

### determine the percentage of the total molar specific heat that is attributed to free electrons in gold.

The Dulong–Petit law states that the molar specific heat of solids is 3R at higher temperatures, where R is the gas constant. For metals, this law is obeyed at room….