If a positively charged object is brought near a suspended, positively charged object, the suspended object will be
a. repelled.
b. charged more.
c. discharged.
d. attracted.
a
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The Maunder Minimum refers to a period of sustained solar ________ from 1645 until about 1715
Fill in the blank(s) with correct word
A sample of helium has a volume of 2.00 liters, a temperature of 20.0and a pressure of 2.50 atmospheres. What is the energy needed to heat the sample of helium gas from 20.0
to 95.0
at constant volume?
A. 88.0 J B. 137 J C. 175 J D. 207 J E. 476 J
What are the fundamental building blocks of all matter?
a. atoms b. compounds c. ions d. molecules e. electrons
The temperature of an ideal gas in a sealed 0.40 m3 container is reduced from 400 K to 270 K. The final pressure of the gas is 30 kPA. The molar heat capacity at constant volume of the gas is 28.0 J/mol • K. The work done by the gas is closest to
A) 0.00 kJ. B) -19 kJ. C) -25 kJ. D) 19 kJ. E) 25 kJ.