Which of the following sources of water have the shortest average residence time?
A) groundwater B) oceans and ice caps
C) clouds D) soil moisture
C
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Urine consists solely of water and urea or uric acid
Indicate whether the statement is true or false
A mechanical refrigeration system cools a room by:
A) Realigning the air molecules in the room. B) Removing heat from the room. C) Radiating cold energy into the room. D) Adding cold to the room until the level of cold reaches the proper level.
The internal resistance of five cells is 1.8 ohms each. The cells are connected as shown in the diagram to a 2-ohm resistance. What current, to the nearer hundredth, exists in the circuit?
Fill in the blank(s) with the appropriate word(s).
According to Newton's second law, the ____ of an object is equal to the force imparted on an object divided by its mass.
A. position B. momentum C. acceleration D. velocity