Which of the following metals is a constituent of iron meteorites?
A) Nickel
B) Potassium
C) Zinc
D) Copper
A
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In the context of binary stars, briefly explain visual binary system, spectroscopic binary system, and eclipsing binary system
What will be an ideal response?
Gasoline is useful in cars because it has
A) chemical potential energy. B) electrical potential energy. C) kinetic energy. D) gravitational potential energy. E) radiative energy.
Pressure: One of the dangers of tornados and hurricanes is the rapid drop in air pressure that is associated with such storms. Assume that the air pressure inside of a sealed house is 1.02 atm when a hurricane hits. The hurricane rapidly decreases the external air pressure to 0.910 atm. What net outward force is exerted on a square window of the house that is 2.03 m on each side? (1.00 atm = 1.01 × 105 Pa)
A. 4.59 × 104 N B. 5.19 × 104 N C. 4.82 × 105 N D. 5.42 × 105 N
Metabolism is a term that describes the
A) breaking down of complex organic molecules by bacteria B) rate at which molecules travel across cell membranes C) chemical processes that occur inside cells D) rate of cell division of bacteria