Atoms with the same atomic number but with different numbers of neutrons are referred to as
A)
positrons.
B)
nucleons.
C)
nuclides.
D)
isotopes.
E)
none of the given answers
D
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An iron robot falls from rest at a great height. Neglecting air resistance, what is its speed after it has fallen for 3.5 seconds?
A. 34.3 m/s B. 9.8 m/s C. 13.3 m/s D. 9.8 m/s2
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Indicate whether the statement is true or false
First Law of Thermodynamics: A monatomic ideal gas having an initial pressure of 500 kPa and an initial volume of 1.80 L expands isothermally to a final volume of 5.20 L. How much work is done by the gas in this process? (R = 8.31 J/mol ? K)
A. 955 J B. 900 J C. 875 J D. 1570 J E. 1700 J
An important reason for using a very large diameter objective in an astronomical telescope in space is
A) to increase the magnification. B) to increase the resolution. C) to increase the width of the field of view. D) to form a virtual image, which is easier to look at. E) to increase the depth of the field of view.