Identify the FALSE statement: The big bang theory states that:
initial changes happened within minutes and later changes occurred over millions of years.
the temperature had to fall below one billion degrees to allow atoms to form.
the process of atom creation, termed big bang nucleosynthesis, produced all known natural elements.
as the Universe cooled, atoms and molecules accumulated in patchy clouds of gas called nebulae.
nebulae condensed and heated to become spinning accretion disks, then protostars, then stars.
the process of atom creation, termed big bang nucleosynthesis, produced all known natural elements.
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If body P, with a positive charge, is placed in contact with body Q (initially uncharged), what will be the nature of the charge left on Q?
a. must be greater in magnitude than that on P b. must be equal in magnitude to that on P c. must be negative d. must be positive
Which one of the following mineral groups exhibits a sheet-like silicate structure?
pyroxenes feldspars carbonates micas
While traveling along a straight interstate highway you notice that the mile marker reads 260. You travel until you reach mile marker 150 and then retrace your path to the mile marker 175. What is the magnitude of your resultant displacement from mile marker 260?
1.110 miles 2.135 miles 3.260 miles 4.85 miles
A race car travels 40 m/s around a banked (45° with the horizontal) circular (radius = 0.20 km) track. What is the magnitude of the resultant force on the 80-kg driver of this car?
a. 0.68 kN b. 0.64 kN c. 0.72 kN d. 0.76 kN e. 0.52 kN