Examlex
What is the cutoff frequency for a metal surface that has a work function of 5.42 eV?
Environmental Effects
The impact of human activities on the natural world, including changes to ecosystems, biodiversity, and climate.
Sandstone
Sandstone is a sedimentary rock formed by the consolidation and compression of sand particles, used widely in construction because of its durability and workability.
Limestone
A sedimentary rock composed mainly of calcium carbonate, often used in construction and as a raw material in cement production.
Sun
The star at the center of the Solar System, which is the primary source of energy for Earth, influencing climate and weather patterns.
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