What elements do the symbols Fe, Na, Au, and Hg stand for?
a. aluminum, nitrogen, silver, tungsten
b. iron, sulfur, silver, ytterbium
c. iron, sodium, silver, mercury
d. iron, sodium, gold, mercury
e. none of the above
d
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Answer the following statement true (T) or false (F)
A force of 30N stretches a very light ideal spring 0.73m from equilibrium. What is the force constant (spring constant) of the spring?
A) 34 N/m B) 41 N/m C) 46 N/m D) 22 N/m
Theoretical physicists have had the greatest success in combining which force with the electromagnetic force?
a. strong nuclear force b. weak nuclear force c. gravitational force d. the force caused by the exchange of gluons
A long, straight wire carries a current I (Fig. OQ30.8). Which of the following statements is true regarding the magnetic field due to the wire? More than one statement may be correct