A "GUT" (grand unified theory) refers to theories that
A) unify gravity with the strong and weak forces.
B) unify the electromagnetic and weak forces.
C) unify all four forces together.
D) unify the strong force with the electromagnetic and weak forces.
D
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Which of the following is fundamentally different from the others?
A) sound waves B) X-rays C) gamma rays D) light waves E) radio waves
A silver solder alloy with 40 atomic % Cu and 60 atomic % Ag is at
The ionization energy of the hydrogen atom is 13.6 eV. What is the energy of a photon emitted corresponding to a transition from the n = 6 to n = 2 state?
a. 7.9 eV c. 3.0 eV b. 2.9 eV d. 4.0 eV
If one were told the object's initial velocity then one could calculate the work done by using the equations for constant acceleration to find the distance traveled. When we say work is done by a force, we mean the force does
a. all the work c. negative work b. positive work d. zero work