Express the kinetic energy [1?2 (mass)(speed)2 ] of a car with a mass of 1,200 kg moving at a speed of 100 km/h. First, you need to convert the speed from km/h to the fundamental units of m/s. Show the conversion steps. (Note: We explain the concept of kinetic energy in Chapter 3.)
What will be an ideal response?
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A mineral that is not a silicate is
A. calcite. B. quartz. C. feldspar. D. mica.
Peroxyacetyl nitrates (PANs) in the lower troposphere
A) are principally related to sulfur dioxides. B) are formed by particulates such as dust, dirt, soot, and ash. C) damages and kills plant tissue but does not appear to affect people. D) are emitted from the tail pipes of automobiles; i.e., it comes directly from automobile exhaust.
At low elevations near the equator, high temperatures and abundant yearly rainfall combine to produce a dense, broadleaf, evergreen forest called a ____________________
Fill in the blank with correct word.
Volcanic ash from recent eruptions of Aleutian volcanoes has posed a threat to air travel.
Answer the following statement true (T) or false (F)