What information is needed in order to forecast today's weather?
What will be an ideal response?
Answer: The data needed to forecast today's weather includes all the elements of the air conditions: temperature, air pressure, humidity, type of clouds, level of precipitation, visibility, and the direction and speed of the wind.
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If the current through a circuit of constant resistance is doubled, the power dissipated by that circuit will
A) quadruple in magnitude. B) double in magnitude. C) decrease to one-half of what it was. D) decrease to one-fourth of what it was.
A resistor and a capacitor are connected in series to an ideal battery of constant terminal voltage. When this system reaches its steady-state, the voltage across the resistor is
A) greater than the battery's terminal voltage. B) less than the battery's terminal voltage, but greater than zero. C) equal to the battery's terminal voltage. D) zero.
The pressure of an ideal gas is doubled during a process in which the energy given up as heat by the gas equals the work done on the gas. As a result, the volume is:
A. doubled B. halved C. unchanged D. need more information to answer E. nonsense; the process is impossible
Outgassing is
a. the adding of material to an object an atom or molecule at a time. b. the adding of material to an object by collection of solid particles. c. the release of gas from rocks as they are heated. d. the largest of the Galilean satellites. e. caused by the bombardment of the solar wind.