Single-Slit Diffraction: What principle is responsible for light spreading as it passes through a narrow slit?
A. refraction
B. polarization
C. diffraction
D. dispersion
Answer: C
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Complete the following analogy: ____________::______________ as spin::orbit
Fill in the blank(s) with correct word
Specific Heat: A thermally isolated system is made up of a hot piece of aluminum and a cold piece of copper, with the aluminum and the copper in thermal contact. The specific heat capacity of aluminum is more than double that of copper. Which object experiences the greater temperature change during the time the system takes to reach thermal equilibrium?
A. the copper B. the aluminum C. Neither one; both of them experience the same size temperature change. D. It is impossible to tell without knowing the masses. E. It is impossible to tell without knowing the volumes.
Modern nuclear bomb tests have created an extra high level of 14C in our atmosphere. Suppose that future archaeologists date samples from our era, but do not know about this testing
Will their dates be too young, too old, or still correct? If correct they are correct, why? A) too young B) too old C) correct, because 14C from bomb tests is different from that produced naturally D) correct, because modern biological materials do not gather 14C from bomb tests
In 1987, the best refrigerator being sold used 515 kWh/yr and the average used 979 kWh/yr. How much money would have been saved on your electric bill between then and 2000 by buying the more efficient one?
What will be an ideal response?