The radius of an atom is typically:
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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.
The scientist ______________ is generally regarded as "the father of geology."
Fill in the blank(s) with correct word
A capacitor consisting of two separated parallel horizontal plates has a uniform electric field directed upward. If a negative charge is placed exactly midway between the two plates, it will
A. be accelerated to the right. B. be accelerated to the left. C. remain at rest. D. be accelerated downward. E. be accelerated upward.
An airplane with an airspeed of 120 km/h has a heading of 30° east of north in a wind that is blowing toward the west at 30 km/h. What is the speed of the plane relative to the ground?
A) 150 km/h B) 90 km/h C) 140 km/h D) 110 km/h