After a high-mass star explodes in a supernova, what is left behind?
A) always a white dwarf
B) always a neutron star
C) always a black hole
D) almost always either a white dwarf or a neutron star
E) almost always either a neutron star or a black hole
E) almost always either a neutron star or a black hole
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The change in length resulting from an applied force on a specimen divided by the original length is the engineering _____________.
Fill in the blank(s) with the appropriate word(s).
On the Moon, no air is present. As such, which of the following waves cannot be detected
a. optical b. infrared c. radio d. sound
Which of the following is seen on the surface of Europa suggests the existence of a briny ocean below?
A) eruptions of water onto the surface from below B) spectroscopic signatures of salts on the surface C) pools of water seen on the surface D) all of these
Two capacitors with capacitances of 3.25 and 5.00 ?F, respectively, are connected in parallel. The system is connected to a 55-V battery. What charge accumulates on the 3.25-?F capacitor?
a. 16 ?C b. 180 ?C c. 0.30 ?C d. 3.4 ?C e. 1.5 ?C