You are deciding between using a 5000 ohm thermistor, Material System 1, or a class A RTD for measuring the temperature of a critical circuit board of a smart phone near 30°C. The accuracy must be within 0.25°C throughout the range of measurement. Neither speed of response nor component cost is an issue. The 5000-ohm thermistor is defined in the table below. R25 Material System B Value 25/85°C Code R25°C 1% 500 500 10002 3540 : 1% 3627 +1% 3540 - 1% 3627 1% 3540 +/- 1% 3540 - 1% 1000 2A 1800 Maximum Operating Temperature °F (°C) 257 (125) 257 (125) 257 (125) 257 (125) 257 (125) 257 (125) 257 (125) 311 (155) 311 (155) 311 (155) 311 (155) 311 (155) 311 (155) 2000 2000 2200 3627 - 1% 3977 -0.75% 2700 3000 NK222C1'1 NK272C1'1 NK302011 NK502C1'1 NK502C4A 1 NK103C1'1 3977 -0.75% 3977 -/- 075% 3977 -0.75% 3436 - 1% 3977 - 075% 5000 5000 10000 Given the tolerance on B for the thermistor, what is the absolute value of the accuracy of the reading in C that you will get on the thermistor at 30°C? (Type in a three decimal number)

What is the relationship between atmospheric pressure and the density of gas particles in an area of increasing pressure? (2 points) as air pressure in an area increases, the density of the gas particles in that area decreases. as air pressure in an area increases, the density of the gas particles in that area increases. as air pressure in an area increases, the density of the gas particles in that area remains constant. as air pressure in an area increases, the density of the gas particles in that area increases and decreases in an alternating pattern. 3. which of the following correctly describes a way in which earth's atmosphere interacts with the geosphere? (2 points) it contains gases that living organisms breathe. it contains gases that trap incoming solar radiation. it provides a medium for cycles that provide nutrients to living organisms. it provides a medium for water to move between earth's surface and the air. 4. which of the following is considered a drawback to using wind energy as a source of power? (2 points) wind energy is nonrenewable. wind energy produces large amounts of air pollution. wind turbines can kill birds that fly through the rotors. wind turbines are built too close to major population centers. 5. a meteorologist predicts that the weather in a region will soon change from clear skies to probable thunderstorms. prior to making this prediction, what did the meteorologist most likely observe on a barometer? (2 points) the barometer fell slightly. the barometer fell substantially. the barometer rose slightly. the barometer rose substantially. 6. which of the following do meteorologists not typically use weather balloons to record? (2 points) atmospheric pressure cloud types humidity temperature 7. during which step in the can crush lab did water vapor force air from the can? (2 points) the can was filled nearly to the top with water. the can was placed on the hot stove top burner for several minutes. the can was removed from the hot stove top burner. the can was placed upside-down in the water-filled pan.

What would be the result of an alpha particle coming into a magnetic field? a) the alpha particle will stop moving. b) the alpha particle will reverse its direction. c) the alpha particle will be deflected in a curve path. d) the alpha particle will continue to travel in a straight line.

When is a current produced? when the terminals of an electrochemical cell are connected by a wire if the electric circuit is opened in an electrochemical cell if the electrolyte is removed from an electrochemical cell when the electrodes are reversed in an electrochemical cell