Which situation has more energy, a H nucleus, or a separated proton and neutron?
A) A H nucleus, because work is required to put it together beginning from a separated proton and neutron.
B) A H nucleus, because work is required to pull a H nucleus apart.
C) A separated proton and neutron has more energy, because work is required to pull a H nucleus apart.
D) A separated proton and neutron, because work is required to put a H nucleus together.
E) They both have the same energy, because energy is always conserved in any physical process.
C
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An object 10.0 cm in height is placed 37.0 cm in front of a concave mirror of focal length 18.5 cm. What is the height of the image?
A) -2.5 cm B) -5.0 cm C) -7.5 cm D) -20.0 cm E) -10.0 cm
A bass fiddle is louder than a harp because of its
A) thicker strings. B) sounding board. C) lower pitch. D) all of the above E) none of the above
Seismic waves observed at the surface of the Sun provide clues about the temperature and the density of the solar interior.
Answer the following statement true (T) or false (F)
Globular clusters contain mostly blue stars
Indicate whether the statement is true or false