Suppose that the tail for a solution to the Schrödinger equation for a given potential energy function is longer in a given classically forbidden region when the energy is EA than that for a solution for energy EB. This means that
A. EA > EB.
B. EA < EB.
C. It is impossible to tell from the information provided.
A. EA > EB.
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A primitive space heater consists of a 10.0 cm radius iron ball through which electrical current was passed in order to heat the ball and subsequently the surrounding air. If the temperature of the iron ball was kept at 530 K and the room temperature was 
what power would be radiated into the room? Assume the ball is a perfect blackbody.
A. 140 W B. 110 W C. 430 W D. 480 W
At the ends and along the sides of a glacier, the sediment deposits may form ridges known as
a. deltas. b. levees. c. drifts. d. moraines.
How does the light-gathering power of a telescope affect the ability to see faint objects?
A. Faint objects are clearer (better resolved) if the telescope can gather a lot of light. B. Faint objects do not twinkle if the telescope can gather a lot of light. C. Faint objects are brighter if the telescope can gather a lot of light. D. Faint objects appear larger when viewed through a large-diameter telescope.
A uniform pressure of 5.7 × 10^5 N/m2 is applied to all six sides of a copper cube. What is the percentage change in volume of the cube? (for copper, B = 14 × 10^10 N/m2)
a. 0.00070% b. 0.00040% c. 0.0000020% d. 0.00041%